89c35fc44d
Adds support for this flag. There is also another piece for clang (separate review). More info: https://bugs.llvm.org/show_bug.cgi?id=36221 By Ruslan Nikolaev! Differential Revision: https://reviews.llvm.org/D43107 llvm-svn: 325900
39 lines
827 B
LLVM
39 lines
827 B
LLVM
; This test is attempting to detect that the compiler disables stack
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; probe calls when the corresponding option is specified.
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;
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; RUN: llc -mtriple=i686-windows-msvc < %s | FileCheck %s
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target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
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define i32 @test1() "no-stack-arg-probe" {
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%buffer = alloca [4095 x i8]
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ret i32 0
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; CHECK-LABEL: _test1:
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; CHECK-NOT: movl $4095, %eax
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; CHECK: subl $4095, %esp
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; CHECK-NOT: calll __chkstk
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}
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define i32 @test2() "no-stack-arg-probe" {
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%buffer = alloca [4096 x i8]
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ret i32 0
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; CHECK-LABEL: _test2:
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; CHECK-NOT: movl $4096, %eax
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; CHECK: subl $4096, %esp
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; CHECK-NOT: calll __chkstk
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}
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define i32 @test3(i32 %size) "no-stack-arg-probe" {
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%buffer = alloca i8, i32 %size
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ret i32 0
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; CHECK-LABEL: _test3:
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; CHECK: subl {{.*}}, %esp
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; CHECK-NOT: calll __chkstk
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}
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