diff options
Diffstat (limited to 'test/CodeGen')
| -rw-r--r-- | test/CodeGen/X86/2011-10-11-SpillDead.ll | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2011-10-11-SpillDead.ll b/test/CodeGen/X86/2011-10-11-SpillDead.ll new file mode 100644 index 0000000000..8e70d6543a --- /dev/null +++ b/test/CodeGen/X86/2011-10-11-SpillDead.ll @@ -0,0 +1,19 @@ +; RUN: llc < %s -verify-regalloc +; PR11125 +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-apple-macosx10.7" + +; The inline asm takes %x as a GR32_ABCD virtual register. +; The call to @g forces a spill of that register. +; +; The asm has a dead output tied to %x. +; Verify that the spiller creates a value number for that dead def. +; +define void @f(i32 %x) nounwind uwtable ssp { +entry: + tail call void @g() nounwind + %0 = tail call i32 asm sideeffect "foo $0", "=Q,0,~{ebx},~{dirflag},~{fpsr},~{flags}"(i32 %x) nounwind + ret void +} + +declare void @g() |