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| author | Saleem Abdulrasool <compnerd@compnerd.org> | 2015-01-31 02:26:37 +0000 |
|---|---|---|
| committer | Saleem Abdulrasool <compnerd@compnerd.org> | 2015-01-31 02:26:37 +0000 |
| commit | fb8a66fbc558e3dc1f52e5fa4aac3d9ed1fef5ae (patch) | |
| tree | 67a16abf2d5869688e68ce44c0e15eb52522a33b /llvm/test/CodeGen/ARM/Windows/stack-probe-non-default.ll | |
| parent | 33ab83bc4b421088b90f3885bf9fac5eb999bbdd (diff) | |
| download | bcm5719-llvm-fb8a66fbc558e3dc1f52e5fa4aac3d9ed1fef5ae.tar.gz bcm5719-llvm-fb8a66fbc558e3dc1f52e5fa4aac3d9ed1fef5ae.zip | |
ARM: support stack probe size on Windows on ARM
Now that -mstack-probe-size is piped through to the backend via the function
attribute as on Windows x86, honour the value to permit handling of non-default
values for stack probes. This is needed /Gs with the clang-cl driver or
-mstack-probe-size with the clang driver when targeting Windows on ARM.
llvm-svn: 227667
Diffstat (limited to 'llvm/test/CodeGen/ARM/Windows/stack-probe-non-default.ll')
| -rw-r--r-- | llvm/test/CodeGen/ARM/Windows/stack-probe-non-default.ll | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/ARM/Windows/stack-probe-non-default.ll b/llvm/test/CodeGen/ARM/Windows/stack-probe-non-default.ll new file mode 100644 index 00000000000..796bcddd3ca --- /dev/null +++ b/llvm/test/CodeGen/ARM/Windows/stack-probe-non-default.ll @@ -0,0 +1,27 @@ +; RUN: llc -mtriple thumbv7-windows -mcpu cortex-a9 -o - %s \ +; RUN: | FileCheck %s -check-prefix CHECK-DEFAULT-CODE-MODEL + +; RUN: llc -mtriple thumbv7-windows -mcpu cortex-a9 -code-model large -o - %s \ +; RUN: | FileCheck %s -check-prefix CHECK-LARGE-CODE-MODEL + +declare dllimport arm_aapcs_vfpcc void @initialise(i8*) + +define dllexport arm_aapcs_vfpcc signext i8 @function(i32 %offset) #0 { +entry: + %buffer = alloca [4096 x i8], align 1 + %0 = getelementptr inbounds [4096 x i8]* %buffer, i32 0, i32 0 + call arm_aapcs_vfpcc void @initialise(i8* %0) + %arrayidx = getelementptr inbounds [4096 x i8]* %buffer, i32 0, i32 %offset + %1 = load i8* %arrayidx, align 1 + ret i8 %1 +} + +attributes #0 = { "stack-probe-size"="8096" } + +; CHECK-DEFAULT-CODE-MODEL-NOT: __chkstk +; CHECK-DEFAULT-CODE-MODEL: sub.w sp, sp, #4096 + +; CHECK-LARGE-CODE-MODEL-NOT: movw r12, :lower16:__chkstk +; CHECK-LARGE-CODE-MODEL-NOT: movt r12, :upper16:__chkstk +; CHECK-LARGE-CODE-MODEL: sub.w sp, sp, #4096 + |
