[llvm] r305918 - [AARCH64][LSE] Preliminary support for ARMv8.1 LSE Atomics.

Christof Douma via llvm-commits llvm-commits at lists.llvm.org
Wed Jun 21 08:18:39 PDT 2017


Author: christof
Date: Wed Jun 21 10:18:39 2017
New Revision: 305918

URL: http://llvm.org/viewvc/llvm-project?rev=305918&view=rev
Log:
[AARCH64][LSE] Preliminary support for ARMv8.1 LSE Atomics.

Added test file for ARMv8.1 LSE Atomics that I forgot to include in
commit r305893.

Patch by Ananth Jasty.

Differential Revision: https://reviews.llvm.org/D33586

Change-Id: Ic1ad8ed87c1b584c4c791b459a686c866a3c3087

Added:
    llvm/trunk/test/CodeGen/AArch64/atomic-ops-lse.ll

Added: llvm/trunk/test/CodeGen/AArch64/atomic-ops-lse.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/atomic-ops-lse.ll?rev=305918&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/AArch64/atomic-ops-lse.ll (added)
+++ llvm/trunk/test/CodeGen/AArch64/atomic-ops-lse.ll Wed Jun 21 10:18:39 2017
@@ -0,0 +1,683 @@
+; RUN: llc -mtriple=aarch64-none-linux-gnu -disable-post-ra -verify-machineinstrs -mattr=+lse < %s | FileCheck %s
+; RUN: llc -mtriple=aarch64-none-linux-gnu -disable-post-ra -verify-machineinstrs -mattr=+lse < %s | FileCheck %s --check-prefix=CHECK-REG
+
+; Point of CHECK-REG is to make sure UNPREDICTABLE instructions aren't created
+; (i.e. reusing a register for status & data in store exclusive).
+; CHECK-REG-NOT: stlxrb w[[NEW:[0-9]+]], w[[NEW]], [x{{[0-9]+}}]
+; CHECK-REG-NOT: stlxrb w[[NEW:[0-9]+]], x[[NEW]], [x{{[0-9]+}}]
+
+ at var8 = global i8 0
+ at var16 = global i16 0
+ at var32 = global i32 0
+ at var64 = global i64 0
+
+define i8 @test_atomic_load_add_i8(i8 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_add_i8:
+   %old = atomicrmw add i8* @var8, i8 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var8
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var8
+
+; CHECK: ldaddalb w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i8 %old
+}
+
+define i16 @test_atomic_load_add_i16(i16 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_add_i16:
+   %old = atomicrmw add i16* @var16, i16 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var16
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var16
+
+; CHECK: ldaddalh w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i16 %old
+}
+
+define i32 @test_atomic_load_add_i32(i32 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_add_i32:
+   %old = atomicrmw add i32* @var32, i32 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var32
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var32
+
+; CHECK: ldaddal w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i32 %old
+}
+
+define i64 @test_atomic_load_add_i64(i64 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_add_i64:
+   %old = atomicrmw add i64* @var64, i64 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var64
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var64
+
+; CHECK: ldaddal x[[OLD:[0-9]+]], x[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i64 %old
+}
+
+define void @test_atomic_load_add_i32_noret(i32 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_add_i32_noret:
+   atomicrmw add i32* @var32, i32 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var32
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var32
+
+; CHECK: ldaddal w0, w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+  ret void
+}
+
+define void @test_atomic_load_add_i64_noret(i64 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_add_i64_noret:
+   atomicrmw add i64* @var64, i64 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var64
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var64
+
+; CHECK: ldaddal x0, x[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+  ret void
+}
+
+define i8 @test_atomic_load_or_i8(i8 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_or_i8:
+   %old = atomicrmw or i8* @var8, i8 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var8
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var8
+
+; CHECK: ldsetalb w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i8 %old
+}
+
+define i16 @test_atomic_load_or_i16(i16 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_or_i16:
+   %old = atomicrmw or i16* @var16, i16 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var16
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var16
+
+; CHECK: ldsetalh w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i16 %old
+}
+
+define i32 @test_atomic_load_or_i32(i32 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_or_i32:
+   %old = atomicrmw or i32* @var32, i32 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var32
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var32
+
+; CHECK: ldsetal w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i32 %old
+}
+
+define i64 @test_atomic_load_or_i64(i64 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_or_i64:
+   %old = atomicrmw or i64* @var64, i64 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var64
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var64
+
+; CHECK: ldsetal x[[OLD:[0-9]+]], x[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i64 %old
+}
+
+define void @test_atomic_load_or_i32_noret(i32 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_or_i32_noret:
+   atomicrmw or i32* @var32, i32 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var32
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var32
+
+; CHECK: ldsetal w0, w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+  ret void
+}
+
+define void @test_atomic_load_or_i64_noret(i64 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_or_i64_noret:
+   atomicrmw or i64* @var64, i64 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var64
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var64
+
+; CHECK: ldsetal x0, x[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+  ret void
+}
+
+define i8 @test_atomic_load_xor_i8(i8 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_xor_i8:
+   %old = atomicrmw xor i8* @var8, i8 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var8
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var8
+
+; CHECK: ldeoralb w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i8 %old
+}
+
+define i16 @test_atomic_load_xor_i16(i16 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_xor_i16:
+   %old = atomicrmw xor i16* @var16, i16 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var16
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var16
+
+; CHECK: ldeoralh w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i16 %old
+}
+
+define i32 @test_atomic_load_xor_i32(i32 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_xor_i32:
+   %old = atomicrmw xor i32* @var32, i32 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var32
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var32
+
+; CHECK: ldeoral w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i32 %old
+}
+
+define i64 @test_atomic_load_xor_i64(i64 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_xor_i64:
+   %old = atomicrmw xor i64* @var64, i64 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var64
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var64
+
+; CHECK: ldeoral x[[OLD:[0-9]+]], x[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i64 %old
+}
+
+define void @test_atomic_load_xor_i32_noret(i32 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_xor_i32_noret:
+   atomicrmw xor i32* @var32, i32 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var32
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var32
+
+; CHECK: ldeoral w0, w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+  ret void
+}
+
+define void @test_atomic_load_xor_i64_noret(i64 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_xor_i64_noret:
+   atomicrmw xor i64* @var64, i64 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var64
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var64
+
+; CHECK: ldeoral x0, x[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+  ret void
+}
+
+define i8 @test_atomic_load_min_i8(i8 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_min_i8:
+   %old = atomicrmw min i8* @var8, i8 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var8
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var8
+
+; CHECK: ldsminalb w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i8 %old
+}
+
+define i16 @test_atomic_load_min_i16(i16 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_min_i16:
+   %old = atomicrmw min i16* @var16, i16 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var16
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var16
+
+; CHECK: ldsminalh w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i16 %old
+}
+
+define i32 @test_atomic_load_min_i32(i32 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_min_i32:
+   %old = atomicrmw min i32* @var32, i32 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var32
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var32
+
+; CHECK: ldsminal w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i32 %old
+}
+
+define i64 @test_atomic_load_min_i64(i64 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_min_i64:
+   %old = atomicrmw min i64* @var64, i64 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var64
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var64
+
+; CHECK: ldsminal x[[OLD:[0-9]+]], x[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i64 %old
+}
+
+define void @test_atomic_load_min_i32_noret(i32 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_min_i32_noret:
+   atomicrmw min i32* @var32, i32 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var32
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var32
+
+; CHECK: ldsminal w0, w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+  ret void
+}
+
+define void @test_atomic_load_min_i64_noret(i64 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_min_i64_noret:
+   atomicrmw min i64* @var64, i64 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var64
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var64
+
+; CHECK: ldsminal x0, x[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+  ret void
+}
+
+define i8 @test_atomic_load_umin_i8(i8 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_umin_i8:
+   %old = atomicrmw umin i8* @var8, i8 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var8
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var8
+
+; CHECK: lduminalb w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i8 %old
+}
+
+define i16 @test_atomic_load_umin_i16(i16 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_umin_i16:
+   %old = atomicrmw umin i16* @var16, i16 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var16
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var16
+
+; CHECK: lduminalh w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i16 %old
+}
+
+define i32 @test_atomic_load_umin_i32(i32 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_umin_i32:
+   %old = atomicrmw umin i32* @var32, i32 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var32
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var32
+
+; CHECK: lduminal w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i32 %old
+}
+
+define i64 @test_atomic_load_umin_i64(i64 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_umin_i64:
+   %old = atomicrmw umin i64* @var64, i64 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var64
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var64
+
+; CHECK: lduminal x[[OLD:[0-9]+]], x[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i64 %old
+}
+
+define void @test_atomic_load_umin_i32_noret(i32 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_umin_i32_noret:
+   atomicrmw umin i32* @var32, i32 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var32
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var32
+
+; CHECK: lduminal w0, w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+  ret void
+}
+
+define void @test_atomic_load_umin_i64_noret(i64 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_umin_i64_noret:
+   atomicrmw umin i64* @var64, i64 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var64
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var64
+
+; CHECK: lduminal x0, x[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+  ret void
+}
+
+define i8 @test_atomic_load_max_i8(i8 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_max_i8:
+   %old = atomicrmw max i8* @var8, i8 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var8
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var8
+
+; CHECK: ldsmaxalb w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i8 %old
+}
+
+define i16 @test_atomic_load_max_i16(i16 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_max_i16:
+   %old = atomicrmw max i16* @var16, i16 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var16
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var16
+
+; CHECK: ldsmaxalh w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i16 %old
+}
+
+define i32 @test_atomic_load_max_i32(i32 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_max_i32:
+   %old = atomicrmw max i32* @var32, i32 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var32
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var32
+
+; CHECK: ldsmaxal w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i32 %old
+}
+
+define i64 @test_atomic_load_max_i64(i64 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_max_i64:
+   %old = atomicrmw max i64* @var64, i64 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var64
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var64
+
+; CHECK: ldsmaxal x[[OLD:[0-9]+]], x[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i64 %old
+}
+
+define void @test_atomic_load_max_i32_noret(i32 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_max_i32_noret:
+   atomicrmw max i32* @var32, i32 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var32
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var32
+
+; CHECK: ldsmaxal w0, w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+  ret void
+}
+
+define void @test_atomic_load_max_i64_noret(i64 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_max_i64_noret:
+   atomicrmw max i64* @var64, i64 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var64
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var64
+
+; CHECK: ldsmaxal x0, x[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+  ret void
+}
+
+define i8 @test_atomic_load_umax_i8(i8 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_umax_i8:
+   %old = atomicrmw umax i8* @var8, i8 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var8
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var8
+
+; CHECK: ldumaxalb w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i8 %old
+}
+
+define i16 @test_atomic_load_umax_i16(i16 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_umax_i16:
+   %old = atomicrmw umax i16* @var16, i16 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var16
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var16
+
+; CHECK: ldumaxalh w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i16 %old
+}
+
+define i32 @test_atomic_load_umax_i32(i32 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_umax_i32:
+   %old = atomicrmw umax i32* @var32, i32 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var32
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var32
+
+; CHECK: ldumaxal w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i32 %old
+}
+
+define i64 @test_atomic_load_umax_i64(i64 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_umax_i64:
+   %old = atomicrmw umax i64* @var64, i64 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var64
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var64
+
+; CHECK: ldumaxal x[[OLD:[0-9]+]], x[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i64 %old
+}
+
+define void @test_atomic_load_umax_i32_noret(i32 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_umax_i32_noret:
+   atomicrmw umax i32* @var32, i32 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var32
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var32
+
+; CHECK: ldumaxal w0, w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+  ret void
+}
+
+define void @test_atomic_load_umax_i64_noret(i64 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_umax_i64_noret:
+   atomicrmw umax i64* @var64, i64 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var64
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var64
+
+; CHECK: ldumaxal x0, x[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+  ret void
+}
+
+define i8 @test_atomic_load_xchg_i8(i8 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_xchg_i8:
+   %old = atomicrmw xchg i8* @var8, i8 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var8
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var8
+
+; CHECK: swpalb w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i8 %old
+}
+
+define i16 @test_atomic_load_xchg_i16(i16 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_xchg_i16:
+   %old = atomicrmw xchg i16* @var16, i16 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var16
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var16
+
+; CHECK: swpalh w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i16 %old
+}
+
+define i32 @test_atomic_load_xchg_i32(i32 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_xchg_i32:
+   %old = atomicrmw xchg i32* @var32, i32 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var32
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var32
+
+; CHECK: swpal w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i32 %old
+}
+
+define i64 @test_atomic_load_xchg_i64(i64 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_xchg_i64:
+   %old = atomicrmw xchg i64* @var64, i64 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var64
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var64
+
+; CHECK: swpal x[[OLD:[0-9]+]], x[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i64 %old
+}
+
+define void @test_atomic_load_xchg_i32_noret(i32 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_xchg_i32_noret:
+   atomicrmw xchg i32* @var32, i32 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var32
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var32
+
+; CHECK: swpal w[[OLD:[0-9]+]], w[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret void
+}
+
+define void @test_atomic_load_xchg_i64_noret(i64 %offset) nounwind {
+; CHECK-LABEL: test_atomic_load_xchg_i64_noret:
+   atomicrmw xchg i64* @var64, i64 %offset seq_cst
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var64
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var64
+
+; CHECK: swpal x[[OLD:[0-9]+]], x[[NEW:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret void
+}
+
+define i8 @test_atomic_cmpxchg_i8(i8 %wanted, i8 %new) nounwind {
+; CHECK-LABEL: test_atomic_cmpxchg_i8:
+   %pair = cmpxchg i8* @var8, i8 %wanted, i8 %new acquire acquire
+   %old = extractvalue { i8, i1 } %pair, 0
+
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var8
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var8
+
+; CHECK: casalb w[[NEW:[0-9]+]], w[[OLD:[0-9]+]], [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i8 %old
+}
+
+define i16 @test_atomic_cmpxchg_i16(i16 %wanted, i16 %new) nounwind {
+; CHECK-LABEL: test_atomic_cmpxchg_i16:
+   %pair = cmpxchg i16* @var16, i16 %wanted, i16 %new acquire acquire
+   %old = extractvalue { i16, i1 } %pair, 0
+
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var16
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var16
+
+; CHECK: casalh w0, w1, [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i16 %old
+}
+
+define i32 @test_atomic_cmpxchg_i32(i32 %wanted, i32 %new) nounwind {
+; CHECK-LABEL: test_atomic_cmpxchg_i32:
+   %pair = cmpxchg i32* @var32, i32 %wanted, i32 %new acquire acquire
+   %old = extractvalue { i32, i1 } %pair, 0
+
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var32
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var32
+
+; CHECK: casal w0, w1, [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i32 %old
+}
+
+define i64 @test_atomic_cmpxchg_i64(i64 %wanted, i64 %new) nounwind {
+; CHECK-LABEL: test_atomic_cmpxchg_i64:
+   %pair = cmpxchg i64* @var64, i64 %wanted, i64 %new acquire acquire
+   %old = extractvalue { i64, i1 } %pair, 0
+
+; CHECK-NOT: dmb
+; CHECK: adrp [[TMPADDR:x[0-9]+]], var64
+; CHECK: add x[[ADDR:[0-9]+]], [[TMPADDR]], {{#?}}:lo12:var64
+
+; CHECK: casal x0, x1, [x[[ADDR]]]
+; CHECK-NOT: dmb
+
+   ret i64 %old
+}
+




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