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llvm-mirror/test/CodeGen/X86/h-register-store.ll
Derek Schuff 6b7c9ae783 x32. Fixes a bug in i8mem_NOREX declaration.
The old implementation assumed LP64 which is broken for x32.  Specifically, the
MOVE8rm_NOREX and MOVE8mr_NOREX, when selected, would cause a 'Cannot emit
physreg copy instruction' error message to be reported.

This patch also enable the h-register*ll tests for x32.

Differential Revision: http://reviews.llvm.org/D12336

Patch by João Porto

llvm-svn: 247058
2015-09-08 19:47:15 +00:00

57 lines
1.3 KiB
LLVM

; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s -check-prefix=X64
; X64: mov
; X64-NEXT: movb %ah, (%rsi)
; X64: mov
; X64-NEXT: movb %ah, (%rsi)
; X64: mov
; X64-NEXT: movb %ah, (%rsi)
; X64-NOT: mov
; RUN: llc < %s -mtriple=x86_64-linux-gnux32 | FileCheck %s -check-prefix=X32
; X32: mov
; X32-NEXT: movb %ah, (%esi)
; X32: mov
; X32-NEXT: movb %ah, (%esi)
; X32: mov
; X32-NEXT: movb %ah, (%esi)
; X32-NOT: mov
; RUN: llc < %s -mtriple=x86_64-win32 | FileCheck %s -check-prefix=W64
; W64-NOT: mov
; W64: movb %ch, (%rdx)
; W64-NOT: mov
; W64: movb %ch, (%rdx)
; W64-NOT: mov
; W64: movb %ch, (%rdx)
; W64-NOT: mov
; RUN: llc < %s -march=x86 | FileCheck %s -check-prefix=X86
; X86-NOT: mov
; X86: movb %ah, (%e
; X86-NOT: mov
; X86: movb %ah, (%e
; X86-NOT: mov
; X86: movb %ah, (%e
; X86-NOT: mov
; Use h-register extract and store.
define void @foo16(i16 inreg %p, i8* inreg %z) nounwind {
%q = lshr i16 %p, 8
%t = trunc i16 %q to i8
store i8 %t, i8* %z
ret void
}
define void @foo32(i32 inreg %p, i8* inreg %z) nounwind {
%q = lshr i32 %p, 8
%t = trunc i32 %q to i8
store i8 %t, i8* %z
ret void
}
define void @foo64(i64 inreg %p, i8* inreg %z) nounwind {
%q = lshr i64 %p, 8
%t = trunc i64 %q to i8
store i8 %t, i8* %z
ret void
}