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llvm/test/CodeGen/X86/win_chkstk.ll

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Properly emit __chkstk call instead of __alloca on non-mingw windows targets. Patch by Cameron Esfahani! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112902 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-02 23:03:46 +00:00
; RUN: llc < %s -mtriple=i686-pc-win32 | FileCheck %s -check-prefix=WIN_X32
Properly emit stack probe on win64 (for non-mingw targets). Based on the patch by Cameron Esfahani! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115479 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-03 22:02:38 +00:00
; RUN: llc < %s -mtriple=x86_64-pc-win32 | FileCheck %s -check-prefix=WIN_X64
Properly emit __chkstk call instead of __alloca on non-mingw windows targets. Patch by Cameron Esfahani! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112902 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-02 23:03:46 +00:00
; RUN: llc < %s -mtriple=i686-pc-mingw32 | FileCheck %s -check-prefix=MINGW_X32
; RUN: llc < %s -mtriple=x86_64-pc-mingw32 | FileCheck %s -check-prefix=MINGW_X64
; RUN: llc < %s -mtriple=i386-pc-linux | FileCheck %s -check-prefix=LINUX
; Windows and mingw require a prologue helper routine if more than 4096 bytes area
; allocated on the stack. Windows uses __chkstk and mingw uses __alloca. __alloca
; and the 32-bit version of __chkstk will probe the stack and adjust the stack pointer.
; The 64-bit version of __chkstk is only responsible for probing the stack. The 64-bit
; prologue is responsible for adjusting the stack pointer.
; Stack allocation >= 4096 bytes will require call to __chkstk in the Windows ABI.
define i32 @main4k() nounwind {
entry:
Fix an inconsistency in the x86 backend that led it to reject "calll foo" on x86-32: 32-bit calls were named "call" not "calll". 64-bit calls were correctly named "callq", so this only impacted x86-32. This fixes rdar://8456370 - llvm-mc rejects 'calll' This also exposes that mingw/64 is generating a 32-bit call instead of a 64-bit call, I will file a bugzilla. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114534 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-22 05:49:14 +00:00
; WIN_X32: calll __chkstk
Properly emit stack probe on win64 (for non-mingw targets). Based on the patch by Cameron Esfahani! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115479 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-03 22:02:38 +00:00
; WIN_X64: callq __chkstk
Fix an inconsistency in the x86 backend that led it to reject "calll foo" on x86-32: 32-bit calls were named "call" not "calll". 64-bit calls were correctly named "callq", so this only impacted x86-32. This fixes rdar://8456370 - llvm-mc rejects 'calll' This also exposes that mingw/64 is generating a 32-bit call instead of a 64-bit call, I will file a bugzilla. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114534 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-22 05:49:14 +00:00
; MINGW_X32: calll __alloca
Fix test to coincide with r122934 change from PR8919. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122937 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-06 01:09:35 +00:00
; MINGW_X64: callq __chkstk
Properly emit __chkstk call instead of __alloca on non-mingw windows targets. Patch by Cameron Esfahani! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112902 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-02 23:03:46 +00:00
; LINUX-NOT: call __chkstk
%array4096 = alloca [4096 x i8], align 16 ; <[4096 x i8]*> [#uses=0]
ret i32 0
}
; Make sure we don't call __chkstk or __alloca when we have less than a 4096 stack
; allocation.
define i32 @main128() nounwind {
entry:
; WIN_X32: # BB#0:
Fix an inconsistency in the x86 backend that led it to reject "calll foo" on x86-32: 32-bit calls were named "call" not "calll". 64-bit calls were correctly named "callq", so this only impacted x86-32. This fixes rdar://8456370 - llvm-mc rejects 'calll' This also exposes that mingw/64 is generating a 32-bit call instead of a 64-bit call, I will file a bugzilla. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114534 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-22 05:49:14 +00:00
; WIN_X32-NOT: calll __chkstk
Properly emit __chkstk call instead of __alloca on non-mingw windows targets. Patch by Cameron Esfahani! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112902 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-02 23:03:46 +00:00
; WIN_X32: ret
; WIN_X64: # BB#0:
Properly emit stack probe on win64 (for non-mingw targets). Based on the patch by Cameron Esfahani! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115479 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-03 22:02:38 +00:00
; WIN_X64-NOT: callq __chkstk
Properly emit __chkstk call instead of __alloca on non-mingw windows targets. Patch by Cameron Esfahani! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112902 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-02 23:03:46 +00:00
; WIN_X64: ret
; MINGW_X64: # BB#0:
Fix PR8201: Update the code to call via X86::CALL64pcrel32 in the 64-bit case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114597 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-22 22:35:21 +00:00
; MINGW_X64-NOT: callq _alloca
Properly emit __chkstk call instead of __alloca on non-mingw windows targets. Patch by Cameron Esfahani! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112902 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-02 23:03:46 +00:00
; MINGW_X64: ret
; LINUX: # BB#0:
; LINUX-NOT: call __chkstk
; LINUX: ret
%array128 = alloca [128 x i8], align 16 ; <[128 x i8]*> [#uses=0]
ret i32 0
}
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