[llvm] 01e3a37 - [NFC] Precommit test for D132255.
Denis Antrushin via llvm-commits
llvm-commits at lists.llvm.org
Fri Aug 19 11:37:08 PDT 2022
Author: Denis Antrushin
Date: 2022-08-20T01:36:05+07:00
New Revision: 01e3a376955864be6c20fe1134107eb4aa5f2e9c
URL: https://github.com/llvm/llvm-project/commit/01e3a376955864be6c20fe1134107eb4aa5f2e9c
DIFF: https://github.com/llvm/llvm-project/commit/01e3a376955864be6c20fe1134107eb4aa5f2e9c.diff
LOG: [NFC] Precommit test for D132255.
Added:
llvm/test/CodeGen/X86/statepoint-cmp-sunk-past-statepoint.ll
Modified:
Removed:
################################################################################
diff --git a/llvm/test/CodeGen/X86/statepoint-cmp-sunk-past-statepoint.ll b/llvm/test/CodeGen/X86/statepoint-cmp-sunk-past-statepoint.ll
new file mode 100644
index 0000000000000..64ba523b25cfe
--- /dev/null
+++ b/llvm/test/CodeGen/X86/statepoint-cmp-sunk-past-statepoint.ll
@@ -0,0 +1,117 @@
+; RUN: not --crash llc -max-registers-for-gc-values=256 -verify-machineinstrs -stop-after twoaddressinstruction < %s 2>&1 | FileCheck --check-prefixes CHECK-ERROR-LV %s
+; RUN: not --crash llc -max-registers-for-gc-values=256 -verify-machineinstrs -stop-after twoaddressinstruction -early-live-intervals < %s 2>&1 | FileCheck --check-prefixes CHECK-ERROR-LIS %s
+
+; CHECK-ERROR-LV: Bad machine code: Virtual register killed in block, but needed live out.
+; CHECK-ERROR-LV: function: test
+; CHECK-ERROR-LV: basic block: %bb.0
+
+; CHECK-ERROR-LIS: Assertion `(MOReg != Reg || &OtherMI == KillMI) && "Found multiple kills of a register in a basic block"' failed
+
+target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128-ni:1-p2:32:8:8:32-ni:2"
+target triple = "x86_64-unknown-linux-gnu"
+
+declare void @foo() gc "statepoint-example"
+declare void @bar(i8 addrspace(1)*) gc "statepoint-example"
+
+declare i32* @fake_personality_function()
+
+; Simplest possible test demonstrating the problem
+
+; CHECK-LABEL: name: test
+; CHECK: bb.0
+; CHECK-LV: %0:gr64 = COPY killed $rdi
+; CHECK-LIS: %0:gr64 = COPY $rdi
+; CHECK: %0:gr64 = STATEPOINT 2, 5, 0, undef %2:gr64, 2, 0, 2, 0, 2, 0, 2, 1, %0(tied-def 0), 2, 0, 2, 1, 0, 0
+; CHECK-LV: TEST64rr killed %0, %0, implicit-def $eflags
+; CHECK-LIS: TEST64rr %0, %0, implicit-def $eflags
+; CHECK: JCC_1 %bb.2, 4, implicit killed $eflags
+; CHECK: JMP_1 %bb.1
+; CHECK: bb.1
+; CHECK-LV: $rdi = COPY killed %0
+; CHECK-LV: STATEPOINT 2, 5, 1, undef %3:gr64, $rdi, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0
+; CHECK-LIS: $rdi = COPY killed %0
+; CHECK-LIS: STATEPOINT 2, 5, 1, undef %3:gr64, $rdi, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0
+; CHECK: RET 0
+; CHECK: bb.2
+; CHECK: RET 0
+define void @test(i8 addrspace(1)* %a) gc "statepoint-example" {
+entry:
+ %not7 = icmp eq i8 addrspace(1)* %a, null
+ %statepoint_token1745 = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2, i32 5, void ()* nonnull elementtype(void ()) @foo, i32 0, i32 0, i32 0, i32 0) [ "deopt"(), "gc-live"(i8 addrspace(1)* %a) ]
+ br i1 %not7, label %zero, label %not_zero
+
+not_zero:
+ %a.relocated = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %statepoint_token1745, i32 0, i32 0) ; (%a, %a)
+ %statepoint_token1752 = call token (i64, i32, void (i8 addrspace(1)*)*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidp1i8f(i64 2, i32 5, void (i8 addrspace(1)*)* nonnull elementtype(void (i8 addrspace(1)*)) @bar, i32 1, i32 0, i8 addrspace(1)* %a.relocated, i32 0, i32 0) [ "deopt"(), "gc-live"() ]
+ ret void
+
+zero:
+ ret void
+}
+
+; A bit more complex test, where both registers are used in same successor BB
+
+; CHECK-LABEL: name: test2
+; CHECK: bb.2
+; CHECK: %1:gr64 = STATEPOINT 2882400000, 0, 0, undef %11:gr64, 2, 0, 2, 0, 2, 0, 2, 1, %1(tied-def 0), 2, 0, 2, 1, 0, 0, csr_64
+; CHECK: %1:gr64 = STATEPOINT 2882400000, 0, 0, undef %13:gr64, 2, 0, 2, 0, 2, 0, 2, 1, %1(tied-def 0), 2, 0, 2, 1, 0, 0, csr_64
+; CHECK: JMP_1 %bb.3
+; CHECK: bb.3
+; CHECK: %18:gr8 = COPY %17.sub_8bit
+; CHECK-LV: TEST8rr killed %18, %18, implicit-def $eflags
+; CHECK-LIS: TEST8rr %18, %18, implicit-def $eflags
+; CHECK: JCC_1 %bb.5, 5, implicit killed $eflags
+; CHECK: JMP_1 %bb.4
+; CHECK: bb.4
+; CHECK: bb.5
+; CHECK: %4:gr64 = LEA64r %1, 1, $noreg, 8, $noreg
+; CHECK-LV: %3:gr64 = COPY killed %1
+; CHECK-LIS: %3:gr64 = COPY killed %1
+; CHECK-LV: TEST64rr killed %1, %1, implicit-def $eflags
+; CHECK: JCC_1 %bb.1, 5, implicit killed $eflags
+; CHECK: JMP_1 %bb.6
+define void @test2(i8 addrspace(1)* %this, i32 %0, i32 addrspace(1)* %p0, i8 addrspace(1)* %p1) gc "statepoint-example" personality i32* ()* @fake_personality_function {
+preheader:
+ br label %loop.head
+
+loop.head:
+ %phi1 = phi i32 addrspace(1)* [ %p0, %preheader ], [ %addr.i.i46797.remat64523, %tail ]
+ %v1 = phi i8 addrspace(1)* [ %p1, %preheader ], [ %v3, %tail ]
+ %not3= icmp ne i32 addrspace(1)* %phi1, null
+ br i1 %not3, label %BB1, label %BB3
+
+BB3:
+ %token1 = call token (i64, i32, i8 addrspace(1)* ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_p1i8f(i64 2882400000, i32 0, i8 addrspace(1)* ()* elementtype(i8 addrspace(1)* ()) undef, i32 0, i32 0, i32 0, i32 0) [ "deopt"(), "gc-live"(i8 addrspace(1)* %v1) ]
+ %v2 = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %token1, i32 0, i32 0) ; (%v1, %v1)
+ %cond = icmp eq i8 addrspace(1)* null, %v2
+ %token2 = invoke token (i64, i32, i8 addrspace(1)* ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_p1i8f(i64 2882400000, i32 0, i8 addrspace(1)* ()* elementtype(i8 addrspace(1)* ()) undef, i32 0, i32 0, i32 0, i32 0) [ "deopt"(), "gc-live"(i8 addrspace(1)* %v2, i32 addrspace(1)* %phi1) ]
+ to label %BB2 unwind label %BB6
+
+BB2:
+ %v3 = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %token2, i32 0, i32 0) ; (%v2, %v2)
+ %.remat64522 = getelementptr inbounds i8, i8 addrspace(1)* %v3, i64 8
+ %addr.i.i46797.remat64523 = bitcast i8 addrspace(1)* %.remat64522 to i32 addrspace(1)*
+ br i1 undef, label %BB4, label %tail
+
+BB4:
+ %dummy = ptrtoint i64* undef to i64
+ br label %tail
+
+tail:
+ br i1 %cond, label %BB1, label %loop.head
+
+BB1:
+ ret void
+
+BB6:
+ %lpad.split-lp = landingpad token
+ cleanup
+ ret void
+
+}
+
+
+declare i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token, i32 immarg, i32 immarg) #5
+declare token @llvm.experimental.gc.statepoint.p0f_p1i8f(i64 immarg, i32 immarg, i8 addrspace(1)* ()*, i32 immarg, i32 immarg, ...)
+declare token @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 immarg, i32 immarg, void ()*, i32 immarg, i32 immarg, ...)
+declare token @llvm.experimental.gc.statepoint.p0f_isVoidp1i8f(i64 immarg, i32 immarg, void (i8 addrspace(1)*)*, i32 immarg, i32 immarg, ...)
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