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2b2075f834
Summary: This patch adds explicit calling convention types for the Win64 and System V/x86-64 ABIs. This allows code to override the default, and use the Win64 convention on a target that wants to use SysV (and vice-versa). This is needed to implement the `ms_abi` and `sysv_abi` GNU attributes. Reviewers: CC: llvm-svn: 186144
37 lines
1.2 KiB
LLVM
37 lines
1.2 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-pc-win32 | FileCheck %s
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; RUN: llc < %s -mtriple=x86_64-pc-linux | FileCheck %s -check-prefix=LINUX
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; Verify that the 5th and 6th parameters are coming from the correct location
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; on the stack.
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define i32 @f6(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5, i32 %p6) nounwind readnone optsize {
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entry:
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; CHECK: movl 48(%rsp), %eax
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; CHECK: addl 40(%rsp), %eax
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; LINUX: addl %r9d, %r8d
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; LINUX: movl %r8d, %eax
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%add = add nsw i32 %p6, %p5
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ret i32 %add
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}
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define x86_64_win64cc i32 @f7(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5, i32 %p6) nounwind readnone optsize {
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entry:
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; CHECK: movl 48(%rsp), %eax
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; CHECK: addl 40(%rsp), %eax
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; LINUX: movl 48(%rsp), %eax
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; LINUX: addl 40(%rsp), %eax
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%add = add nsw i32 %p6, %p5
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ret i32 %add
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}
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; Verify that even though we're compiling for Windows, parameters behave as
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; on other platforms here (note the x86_64_sysvcc calling convention).
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define x86_64_sysvcc i32 @f8(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5, i32 %p6) nounwind readnone optsize {
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entry:
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; CHECK: addl %r9d, %r8d
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; CHECK: movl %r8d, %eax
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; LINUX: addl %r9d, %r8d
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; LINUX: movl %r8d, %eax
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%add = add nsw i32 %p6, %p5
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ret i32 %add
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}
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