diff options
Diffstat (limited to 'test/CodeGen/X86/stackmap.ll')
| -rw-r--r-- | test/CodeGen/X86/stackmap.ll | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/test/CodeGen/X86/stackmap.ll b/test/CodeGen/X86/stackmap.ll index 8567037..5e356f3 100644 --- a/test/CodeGen/X86/stackmap.ll +++ b/test/CodeGen/X86/stackmap.ll @@ -1,4 +1,4 @@ -; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7 -disable-fp-elim | FileCheck %s +; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7 | FileCheck %s ; ; Note: Print verbose stackmaps using -debug-only=stackmaps. @@ -9,11 +9,11 @@ ; CHECK-NEXT: .byte 0 ; CHECK-NEXT: .short 0 ; Num Functions -; CHECK-NEXT: .long 15 +; CHECK-NEXT: .long 16 ; Num LargeConstants ; CHECK-NEXT: .long 3 ; Num Callsites -; CHECK-NEXT: .long 19 +; CHECK-NEXT: .long 20 ; Functions and stack size ; CHECK-NEXT: .quad _constantargs @@ -46,6 +46,8 @@ ; CHECK-NEXT: .quad 8 ; CHECK-NEXT: .quad _clobberScratch ; CHECK-NEXT: .quad 56 +; CHECK-NEXT: .quad _needsStackRealignment +; CHECK-NEXT: .quad -1 ; Large Constants ; CHECK-NEXT: .quad 2147483648 @@ -464,6 +466,23 @@ define void @clobberScratch(i32 %a) { ret void } +; A stack frame which needs to be realigned at runtime (to meet alignment +; criteria for values on the stack) does not have a fixed frame size. +; CHECK-LABEL: .long L{{.*}}-_needsStackRealignment +; CHECK-NEXT: .short 0 +; 0 locations +; CHECK-NEXT: .short 0 +define void @needsStackRealignment() { + %val = alloca i64, i32 3, align 128 + tail call void (...)* @escape_values(i64* %val) +; Note: Adding any non-constant to the stackmap would fail because we +; expected to be able to address off the frame pointer. In a realigned +; frame, we must use the stack pointer instead. This is a separate bug. + tail call void (i64, i32, ...)* @llvm.experimental.stackmap(i64 0, i32 0) + ret void +} +declare void @escape_values(...) + declare void @llvm.experimental.stackmap(i64, i32, ...) declare void @llvm.experimental.patchpoint.void(i64, i32, i8*, i32, ...) declare i64 @llvm.experimental.patchpoint.i64(i64, i32, i8*, i32, ...) |