diff options
Diffstat (limited to 'llvm/test/CodeGen/Thumb2/aligned-spill.ll')
| -rw-r--r-- | llvm/test/CodeGen/Thumb2/aligned-spill.ll | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/Thumb2/aligned-spill.ll b/llvm/test/CodeGen/Thumb2/aligned-spill.ll new file mode 100644 index 00000000000..1a987d02d07 --- /dev/null +++ b/llvm/test/CodeGen/Thumb2/aligned-spill.ll @@ -0,0 +1,22 @@ +; RUN: llc < %s -mcpu=cortex-a8 | FileCheck %s +target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32-S32" +target triple = "thumbv7-apple-ios" + +; CHECK: f +; This function is forced to spill a double. +; Verify that the spill slot is properly aligned. +; +; The caller-saved r4 is used as a scratch register for stack realignment. +; CHECK: push {r4, r7, lr} +; CHECK: bic r4, r4, #7 +; CHECK: mov sp, r4 +define void @f(double* nocapture %p) nounwind ssp { +entry: + %0 = load double* %p, align 4 + tail call void asm sideeffect "", "~{d8},~{d9},~{d10},~{d11},~{d12},~{d13},~{d14},~{d15}"() nounwind + tail call void @g() nounwind + store double %0, double* %p, align 4 + ret void +} + +declare void @g() |
