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The popc instruction is defined in the SPARCv9 instruction set architecture, but it was emulated on CPUs older than Niagara 2. llvm-svn: 200131
32 lines
1.1 KiB
LLVM
32 lines
1.1 KiB
LLVM
; RUN: llc < %s -march=sparc -mattr=-v9 | FileCheck %s -check-prefix=V8
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; RUN: llc < %s -march=sparc -mattr=+v9,+popc | FileCheck %s -check-prefix=V9
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; RUN: llc < %s -march=sparc -mcpu=v9 | FileCheck %s -check-prefix=V8
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; RUN: llc < %s -march=sparc -mcpu=ultrasparc | FileCheck %s -check-prefix=V8
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; RUN: llc < %s -march=sparc -mcpu=ultrasparc3 | FileCheck %s -check-prefix=V8
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; RUN: llc < %s -march=sparc -mcpu=niagara | FileCheck %s -check-prefix=V8
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; RUN: llc < %s -march=sparc -mcpu=niagara2 | FileCheck %s -check-prefix=V9
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; RUN: llc < %s -march=sparc -mcpu=niagara3 | FileCheck %s -check-prefix=V9
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; RUN: llc < %s -march=sparc -mcpu=niagara4 | FileCheck %s -check-prefix=V9
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; RUN: llc < %s -march=sparcv9 -mattr=+popc | FileCheck %s -check-prefix=SPARC64
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declare i32 @llvm.ctpop.i32(i32)
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; V8-LABEL: test
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; V8-NOT: popc
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; V9-LABEL: test
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; V9: srl %o0, 0, %o0
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; V9-NEXT: retl
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; V9-NEXT: popc %o0, %o0
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; SPARC64-LABEL: test
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; SPARC64: srl %o0, 0, %o0
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; SPARC64: retl
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; SPARC64: popc %o0, %o0
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define i32 @test(i32 %X) {
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%Y = call i32 @llvm.ctpop.i32( i32 %X ) ; <i32> [#uses=1]
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ret i32 %Y
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}
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