[llvm] r369877 - [NFC][Regalloc] Add testcases for D66576
Zi Xuan Wu via llvm-commits
llvm-commits at lists.llvm.org
Sun Aug 25 22:06:31 PDT 2019
Author: wuzish
Date: Sun Aug 25 22:06:30 2019
New Revision: 369877
URL: http://llvm.org/viewvc/llvm-project?rev=369877&view=rev
Log:
[NFC][Regalloc] Add testcases for D66576
Added:
llvm/trunk/test/CodeGen/AArch64/csr-split.ll
llvm/trunk/test/CodeGen/ARM/csr-split.ll
llvm/trunk/test/CodeGen/PowerPC/csr-split.ll
llvm/trunk/test/CodeGen/X86/csr-split.ll
Added: llvm/trunk/test/CodeGen/AArch64/csr-split.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/csr-split.ll?rev=369877&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/AArch64/csr-split.ll (added)
+++ llvm/trunk/test/CodeGen/AArch64/csr-split.ll Sun Aug 25 22:06:30 2019
@@ -0,0 +1,224 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -verify-machineinstrs -mtriple=aarch64-unknown-linux < %s | FileCheck %s
+; RUN: llc -verify-machineinstrs -mtriple=arm64-apple-ios < %s | FileCheck %s --check-prefix=CHECK-APPLE
+
+; Check CSR split can work properly for tests below.
+
+ at a = common dso_local local_unnamed_addr global i32 0, align 4
+
+define dso_local signext i32 @test1(i32* %b) local_unnamed_addr {
+; CHECK-LABEL: test1:
+; CHECK: // %bb.0: // %entry
+; CHECK-NEXT: stp x30, x19, [sp, #-16]! // 16-byte Folded Spill
+; CHECK-NEXT: .cfi_def_cfa_offset 16
+; CHECK-NEXT: .cfi_offset w19, -8
+; CHECK-NEXT: .cfi_offset w30, -16
+; CHECK-NEXT: adrp x8, a
+; CHECK-NEXT: ldrsw x8, [x8, :lo12:a]
+; CHECK-NEXT: cmp x8, x0
+; CHECK-NEXT: b.eq .LBB0_2
+; CHECK-NEXT: // %bb.1: // %if.end
+; CHECK-NEXT: ldp x30, x19, [sp], #16 // 16-byte Folded Reload
+; CHECK-NEXT: ret
+; CHECK-NEXT: .LBB0_2: // %if.then
+; CHECK-NEXT: mov x19, x0
+; CHECK-NEXT: bl callVoid
+; CHECK-NEXT: mov x0, x19
+; CHECK-NEXT: ldp x30, x19, [sp], #16 // 16-byte Folded Reload
+; CHECK-NEXT: b callNonVoid
+;
+; CHECK-APPLE-LABEL: test1:
+; CHECK-APPLE: ; %bb.0: ; %entry
+; CHECK-APPLE-NEXT: stp x20, x19, [sp, #-32]! ; 16-byte Folded Spill
+; CHECK-APPLE-NEXT: stp x29, x30, [sp, #16] ; 16-byte Folded Spill
+; CHECK-APPLE-NEXT: .cfi_def_cfa_offset 32
+; CHECK-APPLE-NEXT: .cfi_offset w30, -8
+; CHECK-APPLE-NEXT: .cfi_offset w29, -16
+; CHECK-APPLE-NEXT: .cfi_offset w19, -24
+; CHECK-APPLE-NEXT: .cfi_offset w20, -32
+; CHECK-APPLE-NEXT: Lloh0:
+; CHECK-APPLE-NEXT: adrp x8, _a at PAGE
+; CHECK-APPLE-NEXT: Lloh1:
+; CHECK-APPLE-NEXT: ldrsw x8, [x8, _a at PAGEOFF]
+; CHECK-APPLE-NEXT: cmp x8, x0
+; CHECK-APPLE-NEXT: b.eq LBB0_2
+; CHECK-APPLE-NEXT: ; %bb.1: ; %if.end
+; CHECK-APPLE-NEXT: ldp x29, x30, [sp, #16] ; 16-byte Folded Reload
+; CHECK-APPLE-NEXT: ldp x20, x19, [sp], #32 ; 16-byte Folded Reload
+; CHECK-APPLE-NEXT: ret
+; CHECK-APPLE-NEXT: LBB0_2: ; %if.then
+; CHECK-APPLE-NEXT: mov x19, x0
+; CHECK-APPLE-NEXT: bl _callVoid
+; CHECK-APPLE-NEXT: ldp x29, x30, [sp, #16] ; 16-byte Folded Reload
+; CHECK-APPLE-NEXT: mov x0, x19
+; CHECK-APPLE-NEXT: ldp x20, x19, [sp], #32 ; 16-byte Folded Reload
+; CHECK-APPLE-NEXT: b _callNonVoid
+; CHECK-APPLE-NEXT: .loh AdrpLdr Lloh0, Lloh1
+entry:
+ %0 = load i32, i32* @a, align 4, !tbaa !2
+ %conv = sext i32 %0 to i64
+ %1 = inttoptr i64 %conv to i32*
+ %cmp = icmp eq i32* %1, %b
+ br i1 %cmp, label %if.then, label %if.end
+
+if.then: ; preds = %entry
+ %call = tail call signext i32 bitcast (i32 (...)* @callVoid to i32 ()*)()
+ %call2 = tail call signext i32 @callNonVoid(i32* %b)
+ br label %if.end
+
+if.end: ; preds = %if.then, %entry
+ %retval.0 = phi i32 [ %call2, %if.then ], [ undef, %entry ]
+ ret i32 %retval.0
+}
+
+declare signext i32 @callVoid(...) local_unnamed_addr
+
+declare signext i32 @callNonVoid(i32*) local_unnamed_addr
+
+define dso_local signext i32 @test2(i32* %p1) local_unnamed_addr {
+; CHECK-LABEL: test2:
+; CHECK: // %bb.0: // %entry
+; CHECK-NEXT: stp x30, x19, [sp, #-16]! // 16-byte Folded Spill
+; CHECK-NEXT: .cfi_def_cfa_offset 16
+; CHECK-NEXT: .cfi_offset w19, -8
+; CHECK-NEXT: .cfi_offset w30, -16
+; CHECK-NEXT: cbz x0, .LBB1_2
+; CHECK-NEXT: // %bb.1: // %if.end
+; CHECK-NEXT: adrp x8, a
+; CHECK-NEXT: ldrsw x8, [x8, :lo12:a]
+; CHECK-NEXT: mov x19, x0
+; CHECK-NEXT: cmp x8, x0
+; CHECK-NEXT: b.eq .LBB1_3
+; CHECK-NEXT: .LBB1_2: // %return
+; CHECK-NEXT: mov w0, wzr
+; CHECK-NEXT: ldp x30, x19, [sp], #16 // 16-byte Folded Reload
+; CHECK-NEXT: ret
+; CHECK-NEXT: .LBB1_3: // %if.then2
+; CHECK-NEXT: bl callVoid
+; CHECK-NEXT: mov x0, x19
+; CHECK-NEXT: ldp x30, x19, [sp], #16 // 16-byte Folded Reload
+; CHECK-NEXT: b callNonVoid
+;
+; CHECK-APPLE-LABEL: test2:
+; CHECK-APPLE: ; %bb.0: ; %entry
+; CHECK-APPLE-NEXT: stp x20, x19, [sp, #-32]! ; 16-byte Folded Spill
+; CHECK-APPLE-NEXT: stp x29, x30, [sp, #16] ; 16-byte Folded Spill
+; CHECK-APPLE-NEXT: .cfi_def_cfa_offset 32
+; CHECK-APPLE-NEXT: .cfi_offset w30, -8
+; CHECK-APPLE-NEXT: .cfi_offset w29, -16
+; CHECK-APPLE-NEXT: .cfi_offset w19, -24
+; CHECK-APPLE-NEXT: .cfi_offset w20, -32
+; CHECK-APPLE-NEXT: cbz x0, LBB1_2
+; CHECK-APPLE-NEXT: ; %bb.1: ; %if.end
+; CHECK-APPLE-NEXT: Lloh2:
+; CHECK-APPLE-NEXT: adrp x8, _a at PAGE
+; CHECK-APPLE-NEXT: Lloh3:
+; CHECK-APPLE-NEXT: ldrsw x8, [x8, _a at PAGEOFF]
+; CHECK-APPLE-NEXT: mov x19, x0
+; CHECK-APPLE-NEXT: cmp x8, x0
+; CHECK-APPLE-NEXT: b.eq LBB1_3
+; CHECK-APPLE-NEXT: LBB1_2: ; %return
+; CHECK-APPLE-NEXT: ldp x29, x30, [sp, #16] ; 16-byte Folded Reload
+; CHECK-APPLE-NEXT: mov w0, wzr
+; CHECK-APPLE-NEXT: ldp x20, x19, [sp], #32 ; 16-byte Folded Reload
+; CHECK-APPLE-NEXT: ret
+; CHECK-APPLE-NEXT: LBB1_3: ; %if.then2
+; CHECK-APPLE-NEXT: bl _callVoid
+; CHECK-APPLE-NEXT: ldp x29, x30, [sp, #16] ; 16-byte Folded Reload
+; CHECK-APPLE-NEXT: mov x0, x19
+; CHECK-APPLE-NEXT: ldp x20, x19, [sp], #32 ; 16-byte Folded Reload
+; CHECK-APPLE-NEXT: b _callNonVoid
+; CHECK-APPLE-NEXT: .loh AdrpLdr Lloh2, Lloh3
+entry:
+ %tobool = icmp eq i32* %p1, null
+ br i1 %tobool, label %return, label %if.end
+
+if.end: ; preds = %entry
+ %0 = load i32, i32* @a, align 4, !tbaa !2
+ %conv = sext i32 %0 to i64
+ %1 = inttoptr i64 %conv to i32*
+ %cmp = icmp eq i32* %1, %p1
+ br i1 %cmp, label %if.then2, label %return
+
+if.then2: ; preds = %if.end
+ %call = tail call signext i32 bitcast (i32 (...)* @callVoid to i32 ()*)()
+ %call3 = tail call signext i32 @callNonVoid(i32* nonnull %p1)
+ br label %return
+
+return: ; preds = %if.end, %entry, %if.then2
+ %retval.0 = phi i32 [ %call3, %if.then2 ], [ 0, %entry ], [ 0, %if.end ]
+ ret i32 %retval.0
+}
+
+
+define dso_local i8* @test3(i8** nocapture %p1, i8 zeroext %p2) local_unnamed_addr {
+; CHECK-LABEL: test3:
+; CHECK: // %bb.0: // %entry
+; CHECK-NEXT: str x30, [sp, #-32]! // 8-byte Folded Spill
+; CHECK-NEXT: stp x20, x19, [sp, #16] // 16-byte Folded Spill
+; CHECK-NEXT: .cfi_def_cfa_offset 32
+; CHECK-NEXT: .cfi_offset w19, -8
+; CHECK-NEXT: .cfi_offset w20, -16
+; CHECK-NEXT: .cfi_offset w30, -32
+; CHECK-NEXT: ldr x19, [x0]
+; CHECK-NEXT: cbz x19, .LBB2_2
+; CHECK-NEXT: // %bb.1: // %land.rhs
+; CHECK-NEXT: mov x20, x0
+; CHECK-NEXT: mov x0, x19
+; CHECK-NEXT: bl bar
+; CHECK-NEXT: str x0, [x20]
+; CHECK-NEXT: .LBB2_2: // %land.end
+; CHECK-NEXT: mov x0, x19
+; CHECK-NEXT: ldp x20, x19, [sp, #16] // 16-byte Folded Reload
+; CHECK-NEXT: ldr x30, [sp], #32 // 8-byte Folded Reload
+; CHECK-NEXT: ret
+;
+; CHECK-APPLE-LABEL: test3:
+; CHECK-APPLE: ; %bb.0: ; %entry
+; CHECK-APPLE-NEXT: stp x20, x19, [sp, #-32]! ; 16-byte Folded Spill
+; CHECK-APPLE-NEXT: stp x29, x30, [sp, #16] ; 16-byte Folded Spill
+; CHECK-APPLE-NEXT: .cfi_def_cfa_offset 32
+; CHECK-APPLE-NEXT: .cfi_offset w30, -8
+; CHECK-APPLE-NEXT: .cfi_offset w29, -16
+; CHECK-APPLE-NEXT: .cfi_offset w19, -24
+; CHECK-APPLE-NEXT: .cfi_offset w20, -32
+; CHECK-APPLE-NEXT: ldr x19, [x0]
+; CHECK-APPLE-NEXT: cbz x19, LBB2_2
+; CHECK-APPLE-NEXT: ; %bb.1: ; %land.rhs
+; CHECK-APPLE-NEXT: mov x20, x0
+; CHECK-APPLE-NEXT: mov x0, x19
+; CHECK-APPLE-NEXT: bl _bar
+; CHECK-APPLE-NEXT: str x0, [x20]
+; CHECK-APPLE-NEXT: LBB2_2: ; %land.end
+; CHECK-APPLE-NEXT: ldp x29, x30, [sp, #16] ; 16-byte Folded Reload
+; CHECK-APPLE-NEXT: mov x0, x19
+; CHECK-APPLE-NEXT: ldp x20, x19, [sp], #32 ; 16-byte Folded Reload
+; CHECK-APPLE-NEXT: ret
+entry:
+ %0 = load i8*, i8** %p1, align 8, !tbaa !6
+ %tobool = icmp eq i8* %0, null
+ br i1 %tobool, label %land.end, label %land.rhs
+
+land.rhs: ; preds = %entry
+ %call = tail call i8* @bar(i8* nonnull %0, i8 zeroext %p2)
+ store i8* %call, i8** %p1, align 8, !tbaa !6
+ br label %land.end
+
+land.end: ; preds = %entry, %land.rhs
+ ret i8* %0
+}
+
+declare i8* @bar(i8*, i8 zeroext) local_unnamed_addr
+
+
+!llvm.module.flags = !{!0}
+!llvm.ident = !{!1}
+
+!0 = !{i32 1, !"wchar_size", i32 4}
+!1 = !{!"clang version 10.0.0 (trunk 367381) (llvm/trunk 367388)"}
+!2 = !{!3, !3, i64 0}
+!3 = !{!"int", !4, i64 0}
+!4 = !{!"omnipotent char", !5, i64 0}
+!5 = !{!"Simple C/C++ TBAA"}
+!6 = !{!7, !7, i64 0}
+!7 = !{!"any pointer", !4, i64 0}
Added: llvm/trunk/test/CodeGen/ARM/csr-split.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/ARM/csr-split.ll?rev=369877&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/ARM/csr-split.ll (added)
+++ llvm/trunk/test/CodeGen/ARM/csr-split.ll Sun Aug 25 22:06:30 2019
@@ -0,0 +1,137 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -verify-machineinstrs -mtriple=arm-unknown-linux < %s | FileCheck %s
+
+; Check CSR split can work properly for tests below.
+
+ at a = common dso_local local_unnamed_addr global i32 0, align 4
+
+define dso_local signext i32 @test1(i32* %b) local_unnamed_addr {
+; CHECK-LABEL: test1:
+; CHECK: @ %bb.0: @ %entry
+; CHECK-NEXT: push {r4, lr}
+; CHECK-NEXT: mov r4, r0
+; CHECK-NEXT: ldr r0, .LCPI0_0
+; CHECK-NEXT: ldr r0, [r0]
+; CHECK-NEXT: cmp r0, r4
+; CHECK-NEXT: popne {r4, lr}
+; CHECK-NEXT: movne pc, lr
+; CHECK-NEXT: bl callVoid
+; CHECK-NEXT: mov r0, r4
+; CHECK-NEXT: pop {r4, lr}
+; CHECK-NEXT: b callNonVoid
+; CHECK-NEXT: .p2align 2
+; CHECK-NEXT: @ %bb.1:
+; CHECK-NEXT: .LCPI0_0:
+; CHECK-NEXT: .long a
+entry:
+ %0 = load i32, i32* @a, align 4, !tbaa !2
+ %conv = sext i32 %0 to i64
+ %1 = inttoptr i64 %conv to i32*
+ %cmp = icmp eq i32* %1, %b
+ br i1 %cmp, label %if.then, label %if.end
+
+if.then: ; preds = %entry
+ %call = tail call signext i32 bitcast (i32 (...)* @callVoid to i32 ()*)()
+ %call2 = tail call signext i32 @callNonVoid(i32* %b)
+ br label %if.end
+
+if.end: ; preds = %if.then, %entry
+ %retval.0 = phi i32 [ %call2, %if.then ], [ undef, %entry ]
+ ret i32 %retval.0
+}
+
+declare signext i32 @callVoid(...) local_unnamed_addr
+
+declare signext i32 @callNonVoid(i32*) local_unnamed_addr
+
+define dso_local signext i32 @test2(i32* %p1) local_unnamed_addr {
+; CHECK-LABEL: test2:
+; CHECK: @ %bb.0: @ %entry
+; CHECK-NEXT: push {r4, lr}
+; CHECK-NEXT: cmp r0, #0
+; CHECK-NEXT: beq .LBB1_2
+; CHECK-NEXT: @ %bb.1: @ %if.end
+; CHECK-NEXT: mov r4, r0
+; CHECK-NEXT: ldr r0, .LCPI1_0
+; CHECK-NEXT: ldr r0, [r0]
+; CHECK-NEXT: cmp r0, r4
+; CHECK-NEXT: beq .LBB1_3
+; CHECK-NEXT: .LBB1_2: @ %return
+; CHECK-NEXT: mov r0, #0
+; CHECK-NEXT: pop {r4, lr}
+; CHECK-NEXT: mov pc, lr
+; CHECK-NEXT: .LBB1_3: @ %if.then2
+; CHECK-NEXT: bl callVoid
+; CHECK-NEXT: mov r0, r4
+; CHECK-NEXT: pop {r4, lr}
+; CHECK-NEXT: b callNonVoid
+; CHECK-NEXT: .p2align 2
+; CHECK-NEXT: @ %bb.4:
+; CHECK-NEXT: .LCPI1_0:
+; CHECK-NEXT: .long a
+entry:
+ %tobool = icmp eq i32* %p1, null
+ br i1 %tobool, label %return, label %if.end
+
+if.end: ; preds = %entry
+ %0 = load i32, i32* @a, align 4, !tbaa !2
+ %conv = sext i32 %0 to i64
+ %1 = inttoptr i64 %conv to i32*
+ %cmp = icmp eq i32* %1, %p1
+ br i1 %cmp, label %if.then2, label %return
+
+if.then2: ; preds = %if.end
+ %call = tail call signext i32 bitcast (i32 (...)* @callVoid to i32 ()*)()
+ %call3 = tail call signext i32 @callNonVoid(i32* nonnull %p1)
+ br label %return
+
+return: ; preds = %if.end, %entry, %if.then2
+ %retval.0 = phi i32 [ %call3, %if.then2 ], [ 0, %entry ], [ 0, %if.end ]
+ ret i32 %retval.0
+}
+
+
+define dso_local i8* @test3(i8** nocapture %p1, i8 zeroext %p2) local_unnamed_addr {
+; CHECK-LABEL: test3:
+; CHECK: @ %bb.0: @ %entry
+; CHECK-NEXT: push {r4, r5, r11, lr}
+; CHECK-NEXT: ldr r4, [r0]
+; CHECK-NEXT: cmp r4, #0
+; CHECK-NEXT: beq .LBB2_2
+; CHECK-NEXT: @ %bb.1: @ %land.rhs
+; CHECK-NEXT: mov r5, r0
+; CHECK-NEXT: mov r0, r4
+; CHECK-NEXT: bl bar
+; CHECK-NEXT: str r0, [r5]
+; CHECK-NEXT: .LBB2_2: @ %land.end
+; CHECK-NEXT: mov r0, r4
+; CHECK-NEXT: pop {r4, r5, r11, lr}
+; CHECK-NEXT: mov pc, lr
+entry:
+ %0 = load i8*, i8** %p1, align 8, !tbaa !6
+ %tobool = icmp eq i8* %0, null
+ br i1 %tobool, label %land.end, label %land.rhs
+
+land.rhs: ; preds = %entry
+ %call = tail call i8* @bar(i8* nonnull %0, i8 zeroext %p2)
+ store i8* %call, i8** %p1, align 8, !tbaa !6
+ br label %land.end
+
+land.end: ; preds = %entry, %land.rhs
+ ret i8* %0
+}
+
+declare i8* @bar(i8*, i8 zeroext) local_unnamed_addr
+
+
+!llvm.module.flags = !{!0}
+!llvm.ident = !{!1}
+
+!0 = !{i32 1, !"wchar_size", i32 4}
+!1 = !{!"clang version 10.0.0 (trunk 367381) (llvm/trunk 367388)"}
+!2 = !{!3, !3, i64 0}
+!3 = !{!"int", !4, i64 0}
+!4 = !{!"omnipotent char", !5, i64 0}
+!5 = !{!"Simple C/C++ TBAA"}
+!6 = !{!7, !7, i64 0}
+!7 = !{!"any pointer", !4, i64 0}
Added: llvm/trunk/test/CodeGen/PowerPC/csr-split.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/PowerPC/csr-split.ll?rev=369877&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/PowerPC/csr-split.ll (added)
+++ llvm/trunk/test/CodeGen/PowerPC/csr-split.ll Sun Aug 25 22:06:30 2019
@@ -0,0 +1,263 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -verify-machineinstrs -ppc-vsr-nums-as-vr -ppc-asm-full-reg-names \
+; RUN: -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr9 < %s | FileCheck %s --check-prefix=CHECK-PWR9
+; RUN: llc -verify-machineinstrs -ppc-vsr-nums-as-vr -ppc-asm-full-reg-names \
+; RUN: -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr8 < %s | FileCheck %s
+
+; Check CSR split can work properly for tests below.
+
+ at a = common dso_local local_unnamed_addr global i32 0, align 4
+
+define dso_local signext i32 @test1(i32* %b) local_unnamed_addr {
+; CHECK-PWR9-LABEL: test1:
+; CHECK-PWR9: # %bb.0: # %entry
+; CHECK-PWR9-NEXT: mflr r0
+; CHECK-PWR9-NEXT: .cfi_def_cfa_offset 48
+; CHECK-PWR9-NEXT: .cfi_offset lr, 16
+; CHECK-PWR9-NEXT: .cfi_offset r30, -16
+; CHECK-PWR9-NEXT: std r30, -16(r1) # 8-byte Folded Spill
+; CHECK-PWR9-NEXT: std r0, 16(r1)
+; CHECK-PWR9-NEXT: stdu r1, -48(r1)
+; CHECK-PWR9-NEXT: mr r30, r3
+; CHECK-PWR9-NEXT: addis r3, r2, a at toc@ha
+; CHECK-PWR9-NEXT: lwa r3, a at toc@l(r3)
+; CHECK-PWR9-NEXT: cmpld r3, r30
+; CHECK-PWR9-NEXT: # implicit-def: $r3
+; CHECK-PWR9-NEXT: bne cr0, .LBB0_2
+; CHECK-PWR9-NEXT: # %bb.1: # %if.then
+; CHECK-PWR9-NEXT: bl callVoid
+; CHECK-PWR9-NEXT: nop
+; CHECK-PWR9-NEXT: mr r3, r30
+; CHECK-PWR9-NEXT: bl callNonVoid
+; CHECK-PWR9-NEXT: nop
+; CHECK-PWR9-NEXT: .LBB0_2: # %if.end
+; CHECK-PWR9-NEXT: extsw r3, r3
+; CHECK-PWR9-NEXT: addi r1, r1, 48
+; CHECK-PWR9-NEXT: ld r0, 16(r1)
+; CHECK-PWR9-NEXT: mtlr r0
+; CHECK-PWR9-NEXT: ld r30, -16(r1) # 8-byte Folded Reload
+; CHECK-PWR9-NEXT: blr
+;
+; CHECK-LABEL: test1:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: mflr r0
+; CHECK-NEXT: std r0, 16(r1)
+; CHECK-NEXT: stdu r1, -128(r1)
+; CHECK-NEXT: .cfi_def_cfa_offset 128
+; CHECK-NEXT: .cfi_offset lr, 16
+; CHECK-NEXT: .cfi_offset r30, -16
+; CHECK-NEXT: addis r4, r2, a at toc@ha
+; CHECK-NEXT: std r30, 112(r1) # 8-byte Folded Spill
+; CHECK-NEXT: mr r30, r3
+; CHECK-NEXT: lwa r4, a at toc@l(r4)
+; CHECK-NEXT: cmpld r4, r3
+; CHECK-NEXT: # implicit-def: $r3
+; CHECK-NEXT: bne cr0, .LBB0_2
+; CHECK-NEXT: # %bb.1: # %if.then
+; CHECK-NEXT: bl callVoid
+; CHECK-NEXT: nop
+; CHECK-NEXT: mr r3, r30
+; CHECK-NEXT: bl callNonVoid
+; CHECK-NEXT: nop
+; CHECK-NEXT: .LBB0_2: # %if.end
+; CHECK-NEXT: ld r30, 112(r1) # 8-byte Folded Reload
+; CHECK-NEXT: extsw r3, r3
+; CHECK-NEXT: addi r1, r1, 128
+; CHECK-NEXT: ld r0, 16(r1)
+; CHECK-NEXT: mtlr r0
+; CHECK-NEXT: blr
+entry:
+ %0 = load i32, i32* @a, align 4, !tbaa !2
+ %conv = sext i32 %0 to i64
+ %1 = inttoptr i64 %conv to i32*
+ %cmp = icmp eq i32* %1, %b
+ br i1 %cmp, label %if.then, label %if.end
+
+if.then: ; preds = %entry
+ %call = tail call signext i32 bitcast (i32 (...)* @callVoid to i32 ()*)()
+ %call2 = tail call signext i32 @callNonVoid(i32* %b)
+ br label %if.end
+
+if.end: ; preds = %if.then, %entry
+ %retval.0 = phi i32 [ %call2, %if.then ], [ undef, %entry ]
+ ret i32 %retval.0
+}
+
+declare signext i32 @callVoid(...) local_unnamed_addr
+
+declare signext i32 @callNonVoid(i32*) local_unnamed_addr
+
+define dso_local signext i32 @test2(i32* %p1) local_unnamed_addr {
+; CHECK-PWR9-LABEL: test2:
+; CHECK-PWR9: # %bb.0: # %entry
+; CHECK-PWR9-NEXT: mflr r0
+; CHECK-PWR9-NEXT: .cfi_def_cfa_offset 48
+; CHECK-PWR9-NEXT: .cfi_offset lr, 16
+; CHECK-PWR9-NEXT: .cfi_offset r30, -16
+; CHECK-PWR9-NEXT: std r30, -16(r1) # 8-byte Folded Spill
+; CHECK-PWR9-NEXT: std r0, 16(r1)
+; CHECK-PWR9-NEXT: stdu r1, -48(r1)
+; CHECK-PWR9-NEXT: mr r30, r3
+; CHECK-PWR9-NEXT: li r3, 0
+; CHECK-PWR9-NEXT: cmpldi r30, 0
+; CHECK-PWR9-NEXT: beq cr0, .LBB1_3
+; CHECK-PWR9-NEXT: # %bb.1: # %if.end
+; CHECK-PWR9-NEXT: addis r4, r2, a at toc@ha
+; CHECK-PWR9-NEXT: lwa r4, a at toc@l(r4)
+; CHECK-PWR9-NEXT: cmpld r4, r30
+; CHECK-PWR9-NEXT: bne cr0, .LBB1_3
+; CHECK-PWR9-NEXT: # %bb.2: # %if.then2
+; CHECK-PWR9-NEXT: bl callVoid
+; CHECK-PWR9-NEXT: nop
+; CHECK-PWR9-NEXT: mr r3, r30
+; CHECK-PWR9-NEXT: bl callNonVoid
+; CHECK-PWR9-NEXT: nop
+; CHECK-PWR9-NEXT: .LBB1_3: # %return
+; CHECK-PWR9-NEXT: extsw r3, r3
+; CHECK-PWR9-NEXT: addi r1, r1, 48
+; CHECK-PWR9-NEXT: ld r0, 16(r1)
+; CHECK-PWR9-NEXT: mtlr r0
+; CHECK-PWR9-NEXT: ld r30, -16(r1) # 8-byte Folded Reload
+; CHECK-PWR9-NEXT: blr
+;
+; CHECK-LABEL: test2:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: mflr r0
+; CHECK-NEXT: std r0, 16(r1)
+; CHECK-NEXT: stdu r1, -128(r1)
+; CHECK-NEXT: .cfi_def_cfa_offset 128
+; CHECK-NEXT: .cfi_offset lr, 16
+; CHECK-NEXT: .cfi_offset r30, -16
+; CHECK-NEXT: std r30, 112(r1) # 8-byte Folded Spill
+; CHECK-NEXT: mr r30, r3
+; CHECK-NEXT: cmpldi r3, 0
+; CHECK-NEXT: li r3, 0
+; CHECK-NEXT: beq cr0, .LBB1_3
+; CHECK-NEXT: # %bb.1: # %if.end
+; CHECK-NEXT: addis r4, r2, a at toc@ha
+; CHECK-NEXT: lwa r4, a at toc@l(r4)
+; CHECK-NEXT: cmpld r4, r30
+; CHECK-NEXT: bne cr0, .LBB1_3
+; CHECK-NEXT: # %bb.2: # %if.then2
+; CHECK-NEXT: bl callVoid
+; CHECK-NEXT: nop
+; CHECK-NEXT: mr r3, r30
+; CHECK-NEXT: bl callNonVoid
+; CHECK-NEXT: nop
+; CHECK-NEXT: .LBB1_3: # %return
+; CHECK-NEXT: ld r30, 112(r1) # 8-byte Folded Reload
+; CHECK-NEXT: extsw r3, r3
+; CHECK-NEXT: addi r1, r1, 128
+; CHECK-NEXT: ld r0, 16(r1)
+; CHECK-NEXT: mtlr r0
+; CHECK-NEXT: blr
+entry:
+ %tobool = icmp eq i32* %p1, null
+ br i1 %tobool, label %return, label %if.end
+
+if.end: ; preds = %entry
+ %0 = load i32, i32* @a, align 4, !tbaa !2
+ %conv = sext i32 %0 to i64
+ %1 = inttoptr i64 %conv to i32*
+ %cmp = icmp eq i32* %1, %p1
+ br i1 %cmp, label %if.then2, label %return
+
+if.then2: ; preds = %if.end
+ %call = tail call signext i32 bitcast (i32 (...)* @callVoid to i32 ()*)()
+ %call3 = tail call signext i32 @callNonVoid(i32* nonnull %p1)
+ br label %return
+
+return: ; preds = %if.end, %entry, %if.then2
+ %retval.0 = phi i32 [ %call3, %if.then2 ], [ 0, %entry ], [ 0, %if.end ]
+ ret i32 %retval.0
+}
+
+
+define dso_local i8* @test3(i8** nocapture %p1, i8 zeroext %p2) local_unnamed_addr {
+; CHECK-PWR9-LABEL: test3:
+; CHECK-PWR9: # %bb.0: # %entry
+; CHECK-PWR9-NEXT: mflr r0
+; CHECK-PWR9-NEXT: .cfi_def_cfa_offset 64
+; CHECK-PWR9-NEXT: .cfi_offset lr, 16
+; CHECK-PWR9-NEXT: .cfi_offset r29, -24
+; CHECK-PWR9-NEXT: .cfi_offset r30, -16
+; CHECK-PWR9-NEXT: std r29, -24(r1) # 8-byte Folded Spill
+; CHECK-PWR9-NEXT: std r30, -16(r1) # 8-byte Folded Spill
+; CHECK-PWR9-NEXT: std r0, 16(r1)
+; CHECK-PWR9-NEXT: stdu r1, -64(r1)
+; CHECK-PWR9-NEXT: ld r30, 0(r3)
+; CHECK-PWR9-NEXT: cmpldi r30, 0
+; CHECK-PWR9-NEXT: beq cr0, .LBB2_2
+; CHECK-PWR9-NEXT: # %bb.1: # %land.rhs
+; CHECK-PWR9-NEXT: mr r29, r3
+; CHECK-PWR9-NEXT: clrldi r4, r4, 32
+; CHECK-PWR9-NEXT: mr r3, r30
+; CHECK-PWR9-NEXT: bl bar
+; CHECK-PWR9-NEXT: nop
+; CHECK-PWR9-NEXT: std r3, 0(r29)
+; CHECK-PWR9-NEXT: .LBB2_2: # %land.end
+; CHECK-PWR9-NEXT: mr r3, r30
+; CHECK-PWR9-NEXT: addi r1, r1, 64
+; CHECK-PWR9-NEXT: ld r0, 16(r1)
+; CHECK-PWR9-NEXT: mtlr r0
+; CHECK-PWR9-NEXT: ld r30, -16(r1) # 8-byte Folded Reload
+; CHECK-PWR9-NEXT: ld r29, -24(r1) # 8-byte Folded Reload
+; CHECK-PWR9-NEXT: blr
+;
+; CHECK-LABEL: test3:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: mflr r0
+; CHECK-NEXT: std r0, 16(r1)
+; CHECK-NEXT: stdu r1, -144(r1)
+; CHECK-NEXT: .cfi_def_cfa_offset 144
+; CHECK-NEXT: .cfi_offset lr, 16
+; CHECK-NEXT: .cfi_offset r29, -24
+; CHECK-NEXT: .cfi_offset r30, -16
+; CHECK-NEXT: std r30, 128(r1) # 8-byte Folded Spill
+; CHECK-NEXT: ld r30, 0(r3)
+; CHECK-NEXT: std r29, 120(r1) # 8-byte Folded Spill
+; CHECK-NEXT: cmpldi r30, 0
+; CHECK-NEXT: beq cr0, .LBB2_2
+; CHECK-NEXT: # %bb.1: # %land.rhs
+; CHECK-NEXT: mr r29, r3
+; CHECK-NEXT: clrldi r4, r4, 32
+; CHECK-NEXT: mr r3, r30
+; CHECK-NEXT: bl bar
+; CHECK-NEXT: nop
+; CHECK-NEXT: std r3, 0(r29)
+; CHECK-NEXT: .LBB2_2: # %land.end
+; CHECK-NEXT: mr r3, r30
+; CHECK-NEXT: ld r30, 128(r1) # 8-byte Folded Reload
+; CHECK-NEXT: ld r29, 120(r1) # 8-byte Folded Reload
+; CHECK-NEXT: addi r1, r1, 144
+; CHECK-NEXT: ld r0, 16(r1)
+; CHECK-NEXT: mtlr r0
+; CHECK-NEXT: blr
+entry:
+ %0 = load i8*, i8** %p1, align 8, !tbaa !6
+ %tobool = icmp eq i8* %0, null
+ br i1 %tobool, label %land.end, label %land.rhs
+
+land.rhs: ; preds = %entry
+ %call = tail call i8* @bar(i8* nonnull %0, i8 zeroext %p2)
+ store i8* %call, i8** %p1, align 8, !tbaa !6
+ br label %land.end
+
+land.end: ; preds = %entry, %land.rhs
+ ret i8* %0
+}
+
+declare i8* @bar(i8*, i8 zeroext) local_unnamed_addr
+
+
+!llvm.module.flags = !{!0}
+!llvm.ident = !{!1}
+
+!0 = !{i32 1, !"wchar_size", i32 4}
+!1 = !{!"clang version 10.0.0 (trunk 367381) (llvm/trunk 367388)"}
+!2 = !{!3, !3, i64 0}
+!3 = !{!"int", !4, i64 0}
+!4 = !{!"omnipotent char", !5, i64 0}
+!5 = !{!"Simple C/C++ TBAA"}
+!6 = !{!7, !7, i64 0}
+!7 = !{!"any pointer", !4, i64 0}
Added: llvm/trunk/test/CodeGen/X86/csr-split.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/csr-split.ll?rev=369877&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/X86/csr-split.ll (added)
+++ llvm/trunk/test/CodeGen/X86/csr-split.ll Sun Aug 25 22:06:30 2019
@@ -0,0 +1,230 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -verify-machineinstrs -mtriple=x86_64-unknown-linux < %s | FileCheck %s
+; RUN: llc -verify-machineinstrs -mtriple=i386-unknown-linux < %s | FileCheck %s --check-prefix=CHECK-32BIT
+
+; Check CSR split can work properly for tests below.
+
+ at a = common dso_local local_unnamed_addr global i32 0, align 4
+
+define dso_local signext i32 @test1(i32* %b) local_unnamed_addr {
+; CHECK-LABEL: test1:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: pushq %rbx
+; CHECK-NEXT: .cfi_def_cfa_offset 16
+; CHECK-NEXT: .cfi_offset %rbx, -16
+; CHECK-NEXT: movslq {{.*}}(%rip), %rax
+; CHECK-NEXT: cmpq %rdi, %rax
+; CHECK-NEXT: je .LBB0_2
+; CHECK-NEXT: # %bb.1: # %if.end
+; CHECK-NEXT: popq %rbx
+; CHECK-NEXT: .cfi_def_cfa_offset 8
+; CHECK-NEXT: retq
+; CHECK-NEXT: .LBB0_2: # %if.then
+; CHECK-NEXT: .cfi_def_cfa_offset 16
+; CHECK-NEXT: movq %rdi, %rbx
+; CHECK-NEXT: callq callVoid
+; CHECK-NEXT: movq %rbx, %rdi
+; CHECK-NEXT: popq %rbx
+; CHECK-NEXT: .cfi_def_cfa_offset 8
+; CHECK-NEXT: jmp callNonVoid # TAILCALL
+;
+; CHECK-32BIT-LABEL: test1:
+; CHECK-32BIT: # %bb.0: # %entry
+; CHECK-32BIT-NEXT: subl $12, %esp
+; CHECK-32BIT-NEXT: .cfi_def_cfa_offset 16
+; CHECK-32BIT-NEXT: movl {{[0-9]+}}(%esp), %eax
+; CHECK-32BIT-NEXT: cmpl %eax, a
+; CHECK-32BIT-NEXT: je .LBB0_2
+; CHECK-32BIT-NEXT: # %bb.1: # %if.end
+; CHECK-32BIT-NEXT: addl $12, %esp
+; CHECK-32BIT-NEXT: .cfi_def_cfa_offset 4
+; CHECK-32BIT-NEXT: retl
+; CHECK-32BIT-NEXT: .LBB0_2: # %if.then
+; CHECK-32BIT-NEXT: .cfi_def_cfa_offset 16
+; CHECK-32BIT-NEXT: calll callVoid
+; CHECK-32BIT-NEXT: addl $12, %esp
+; CHECK-32BIT-NEXT: .cfi_def_cfa_offset 4
+; CHECK-32BIT-NEXT: jmp callNonVoid # TAILCALL
+entry:
+ %0 = load i32, i32* @a, align 4, !tbaa !2
+ %conv = sext i32 %0 to i64
+ %1 = inttoptr i64 %conv to i32*
+ %cmp = icmp eq i32* %1, %b
+ br i1 %cmp, label %if.then, label %if.end
+
+if.then: ; preds = %entry
+ %call = tail call signext i32 bitcast (i32 (...)* @callVoid to i32 ()*)()
+ %call2 = tail call signext i32 @callNonVoid(i32* %b)
+ br label %if.end
+
+if.end: ; preds = %if.then, %entry
+ %retval.0 = phi i32 [ %call2, %if.then ], [ undef, %entry ]
+ ret i32 %retval.0
+}
+
+declare signext i32 @callVoid(...) local_unnamed_addr
+
+declare signext i32 @callNonVoid(i32*) local_unnamed_addr
+
+define dso_local signext i32 @test2(i32* %p1) local_unnamed_addr {
+; CHECK-LABEL: test2:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: pushq %rbx
+; CHECK-NEXT: .cfi_def_cfa_offset 16
+; CHECK-NEXT: .cfi_offset %rbx, -16
+; CHECK-NEXT: testq %rdi, %rdi
+; CHECK-NEXT: je .LBB1_2
+; CHECK-NEXT: # %bb.1: # %if.end
+; CHECK-NEXT: movq %rdi, %rbx
+; CHECK-NEXT: movslq {{.*}}(%rip), %rax
+; CHECK-NEXT: cmpq %rdi, %rax
+; CHECK-NEXT: je .LBB1_3
+; CHECK-NEXT: .LBB1_2: # %return
+; CHECK-NEXT: xorl %eax, %eax
+; CHECK-NEXT: popq %rbx
+; CHECK-NEXT: .cfi_def_cfa_offset 8
+; CHECK-NEXT: retq
+; CHECK-NEXT: .LBB1_3: # %if.then2
+; CHECK-NEXT: .cfi_def_cfa_offset 16
+; CHECK-NEXT: callq callVoid
+; CHECK-NEXT: movq %rbx, %rdi
+; CHECK-NEXT: popq %rbx
+; CHECK-NEXT: .cfi_def_cfa_offset 8
+; CHECK-NEXT: jmp callNonVoid # TAILCALL
+;
+; CHECK-32BIT-LABEL: test2:
+; CHECK-32BIT: # %bb.0: # %entry
+; CHECK-32BIT-NEXT: subl $12, %esp
+; CHECK-32BIT-NEXT: .cfi_def_cfa_offset 16
+; CHECK-32BIT-NEXT: movl {{[0-9]+}}(%esp), %eax
+; CHECK-32BIT-NEXT: testl %eax, %eax
+; CHECK-32BIT-NEXT: je .LBB1_2
+; CHECK-32BIT-NEXT: # %bb.1: # %if.end
+; CHECK-32BIT-NEXT: cmpl %eax, a
+; CHECK-32BIT-NEXT: je .LBB1_3
+; CHECK-32BIT-NEXT: .LBB1_2: # %return
+; CHECK-32BIT-NEXT: xorl %eax, %eax
+; CHECK-32BIT-NEXT: addl $12, %esp
+; CHECK-32BIT-NEXT: .cfi_def_cfa_offset 4
+; CHECK-32BIT-NEXT: retl
+; CHECK-32BIT-NEXT: .LBB1_3: # %if.then2
+; CHECK-32BIT-NEXT: .cfi_def_cfa_offset 16
+; CHECK-32BIT-NEXT: calll callVoid
+; CHECK-32BIT-NEXT: addl $12, %esp
+; CHECK-32BIT-NEXT: .cfi_def_cfa_offset 4
+; CHECK-32BIT-NEXT: jmp callNonVoid # TAILCALL
+entry:
+ %tobool = icmp eq i32* %p1, null
+ br i1 %tobool, label %return, label %if.end
+
+if.end: ; preds = %entry
+ %0 = load i32, i32* @a, align 4, !tbaa !2
+ %conv = sext i32 %0 to i64
+ %1 = inttoptr i64 %conv to i32*
+ %cmp = icmp eq i32* %1, %p1
+ br i1 %cmp, label %if.then2, label %return
+
+if.then2: ; preds = %if.end
+ %call = tail call signext i32 bitcast (i32 (...)* @callVoid to i32 ()*)()
+ %call3 = tail call signext i32 @callNonVoid(i32* nonnull %p1)
+ br label %return
+
+return: ; preds = %if.end, %entry, %if.then2
+ %retval.0 = phi i32 [ %call3, %if.then2 ], [ 0, %entry ], [ 0, %if.end ]
+ ret i32 %retval.0
+}
+
+
+define dso_local i8* @test3(i8** nocapture %p1, i8 zeroext %p2) local_unnamed_addr {
+; CHECK-LABEL: test3:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: pushq %r14
+; CHECK-NEXT: .cfi_def_cfa_offset 16
+; CHECK-NEXT: pushq %rbx
+; CHECK-NEXT: .cfi_def_cfa_offset 24
+; CHECK-NEXT: pushq %rax
+; CHECK-NEXT: .cfi_def_cfa_offset 32
+; CHECK-NEXT: .cfi_offset %rbx, -24
+; CHECK-NEXT: .cfi_offset %r14, -16
+; CHECK-NEXT: movq (%rdi), %rbx
+; CHECK-NEXT: testq %rbx, %rbx
+; CHECK-NEXT: je .LBB2_2
+; CHECK-NEXT: # %bb.1: # %land.rhs
+; CHECK-NEXT: movq %rdi, %r14
+; CHECK-NEXT: movzbl %sil, %esi
+; CHECK-NEXT: movq %rbx, %rdi
+; CHECK-NEXT: callq bar
+; CHECK-NEXT: movq %rax, (%r14)
+; CHECK-NEXT: .LBB2_2: # %land.end
+; CHECK-NEXT: movq %rbx, %rax
+; CHECK-NEXT: addq $8, %rsp
+; CHECK-NEXT: .cfi_def_cfa_offset 24
+; CHECK-NEXT: popq %rbx
+; CHECK-NEXT: .cfi_def_cfa_offset 16
+; CHECK-NEXT: popq %r14
+; CHECK-NEXT: .cfi_def_cfa_offset 8
+; CHECK-NEXT: retq
+;
+; CHECK-32BIT-LABEL: test3:
+; CHECK-32BIT: # %bb.0: # %entry
+; CHECK-32BIT-NEXT: pushl %edi
+; CHECK-32BIT-NEXT: .cfi_def_cfa_offset 8
+; CHECK-32BIT-NEXT: pushl %esi
+; CHECK-32BIT-NEXT: .cfi_def_cfa_offset 12
+; CHECK-32BIT-NEXT: pushl %eax
+; CHECK-32BIT-NEXT: .cfi_def_cfa_offset 16
+; CHECK-32BIT-NEXT: .cfi_offset %esi, -12
+; CHECK-32BIT-NEXT: .cfi_offset %edi, -8
+; CHECK-32BIT-NEXT: movl {{[0-9]+}}(%esp), %edi
+; CHECK-32BIT-NEXT: movl (%edi), %esi
+; CHECK-32BIT-NEXT: testl %esi, %esi
+; CHECK-32BIT-NEXT: je .LBB2_2
+; CHECK-32BIT-NEXT: # %bb.1: # %land.rhs
+; CHECK-32BIT-NEXT: subl $8, %esp
+; CHECK-32BIT-NEXT: .cfi_adjust_cfa_offset 8
+; CHECK-32BIT-NEXT: movzbl {{[0-9]+}}(%esp), %eax
+; CHECK-32BIT-NEXT: pushl %eax
+; CHECK-32BIT-NEXT: .cfi_adjust_cfa_offset 4
+; CHECK-32BIT-NEXT: pushl %esi
+; CHECK-32BIT-NEXT: .cfi_adjust_cfa_offset 4
+; CHECK-32BIT-NEXT: calll bar
+; CHECK-32BIT-NEXT: addl $16, %esp
+; CHECK-32BIT-NEXT: .cfi_adjust_cfa_offset -16
+; CHECK-32BIT-NEXT: movl %eax, (%edi)
+; CHECK-32BIT-NEXT: .LBB2_2: # %land.end
+; CHECK-32BIT-NEXT: movl %esi, %eax
+; CHECK-32BIT-NEXT: addl $4, %esp
+; CHECK-32BIT-NEXT: .cfi_def_cfa_offset 12
+; CHECK-32BIT-NEXT: popl %esi
+; CHECK-32BIT-NEXT: .cfi_def_cfa_offset 8
+; CHECK-32BIT-NEXT: popl %edi
+; CHECK-32BIT-NEXT: .cfi_def_cfa_offset 4
+; CHECK-32BIT-NEXT: retl
+entry:
+ %0 = load i8*, i8** %p1, align 8, !tbaa !6
+ %tobool = icmp eq i8* %0, null
+ br i1 %tobool, label %land.end, label %land.rhs
+
+land.rhs: ; preds = %entry
+ %call = tail call i8* @bar(i8* nonnull %0, i8 zeroext %p2)
+ store i8* %call, i8** %p1, align 8, !tbaa !6
+ br label %land.end
+
+land.end: ; preds = %entry, %land.rhs
+ ret i8* %0
+}
+
+declare i8* @bar(i8*, i8 zeroext) local_unnamed_addr
+
+
+!llvm.module.flags = !{!0}
+!llvm.ident = !{!1}
+
+!0 = !{i32 1, !"wchar_size", i32 4}
+!1 = !{!"clang version 10.0.0 (trunk 367381) (llvm/trunk 367388)"}
+!2 = !{!3, !3, i64 0}
+!3 = !{!"int", !4, i64 0}
+!4 = !{!"omnipotent char", !5, i64 0}
+!5 = !{!"Simple C/C++ TBAA"}
+!6 = !{!7, !7, i64 0}
+!7 = !{!"any pointer", !4, i64 0}
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