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