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81674807cc
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227667 91177308-0d34-0410-b5e6-96231b3b80d8
28 lines
989 B
LLVM
28 lines
989 B
LLVM
; RUN: llc -mtriple thumbv7-windows -mcpu cortex-a9 -o - %s \
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; RUN: | FileCheck %s -check-prefix CHECK-DEFAULT-CODE-MODEL
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; RUN: llc -mtriple thumbv7-windows -mcpu cortex-a9 -code-model large -o - %s \
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; RUN: | FileCheck %s -check-prefix CHECK-LARGE-CODE-MODEL
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declare dllimport arm_aapcs_vfpcc void @initialise(i8*)
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define dllexport arm_aapcs_vfpcc signext i8 @function(i32 %offset) #0 {
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entry:
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%buffer = alloca [4096 x i8], align 1
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%0 = getelementptr inbounds [4096 x i8]* %buffer, i32 0, i32 0
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call arm_aapcs_vfpcc void @initialise(i8* %0)
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%arrayidx = getelementptr inbounds [4096 x i8]* %buffer, i32 0, i32 %offset
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%1 = load i8* %arrayidx, align 1
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ret i8 %1
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}
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attributes #0 = { "stack-probe-size"="8096" }
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; CHECK-DEFAULT-CODE-MODEL-NOT: __chkstk
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; CHECK-DEFAULT-CODE-MODEL: sub.w sp, sp, #4096
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; CHECK-LARGE-CODE-MODEL-NOT: movw r12, :lower16:__chkstk
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; CHECK-LARGE-CODE-MODEL-NOT: movt r12, :upper16:__chkstk
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; CHECK-LARGE-CODE-MODEL: sub.w sp, sp, #4096
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