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https://github.com/c64scene-ar/llvm-6502.git
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fce288fc91
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81293 91177308-0d34-0410-b5e6-96231b3b80d8
58 lines
987 B
LLVM
58 lines
987 B
LLVM
; RUN: llc < %s -march=thumb | FileCheck %s -check-prefix=V5
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; RUN: llc < %s -march=thumb -mattr=+v6 | FileCheck %s -check-prefix=V6
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; rdar://7176514
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define i32 @test1(i8* %t1) nounwind {
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; V5: ldrb
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; V6: ldrb
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%tmp.u = load i8* %t1
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%tmp1.s = zext i8 %tmp.u to i32
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ret i32 %tmp1.s
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}
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define i32 @test2(i16* %t1) nounwind {
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; V5: ldrh
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; V6: ldrh
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%tmp.u = load i16* %t1
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%tmp1.s = zext i16 %tmp.u to i32
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ret i32 %tmp1.s
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}
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define i32 @test3(i8* %t0) nounwind {
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; V5: ldrb
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; V5: lsls
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; V5: asrs
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; V6: ldrb
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; V6: sxtb
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%tmp.s = load i8* %t0
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%tmp1.s = sext i8 %tmp.s to i32
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ret i32 %tmp1.s
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}
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define i32 @test4(i16* %t0) nounwind {
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; V5: ldrh
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; V5: lsls
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; V5: asrs
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; V6: ldrh
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; V6: sxth
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%tmp.s = load i16* %t0
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%tmp1.s = sext i16 %tmp.s to i32
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ret i32 %tmp1.s
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}
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define i32 @test5() nounwind {
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; V5: movs r0, #0
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; V5: ldrsh
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; V6: movs r0, #0
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; V6: ldrsh
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%tmp.s = load i16* null
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%tmp1.s = sext i16 %tmp.s to i32
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ret i32 %tmp1.s
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}
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