53 lines
1.1 KiB
LLVM
53 lines
1.1 KiB
LLVM
; RUN: llc -verify-machineinstrs < %s -mtriple=ppc32-- | not grep "extsh\|rlwinm"
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declare signext i16 @foo()
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define i32 @test1(i16 signext %X) {
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%Y = sext i16 %X to i32 ;; dead
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ret i32 %Y
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}
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define i32 @test2(i16 zeroext %X) {
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%Y = sext i16 %X to i32
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%Z = and i32 %Y, 65535 ;; dead
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ret i32 %Z
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}
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define void @test3() {
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%tmp.0 = call signext i16 @foo() ;; no extsh!
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%tmp.1 = icmp slt i16 %tmp.0, 1234
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br i1 %tmp.1, label %then, label %UnifiedReturnBlock
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then:
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call i32 @test1(i16 signext 0)
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define i32 @test4(i16* %P) {
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%tmp.1 = load i16, i16* %P
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%tmp.2 = zext i16 %tmp.1 to i32
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%tmp.3 = and i32 %tmp.2, 255
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ret i32 %tmp.3
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}
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define i32 @test5(i16* %P) {
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%tmp.1 = load i16, i16* %P
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%tmp.2 = bitcast i16 %tmp.1 to i16
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%tmp.3 = zext i16 %tmp.2 to i32
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%tmp.4 = and i32 %tmp.3, 255
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ret i32 %tmp.4
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}
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define i32 @test6(i32* %P) {
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%tmp.1 = load i32, i32* %P
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%tmp.2 = and i32 %tmp.1, 255
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ret i32 %tmp.2
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}
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define zeroext i16 @test7(float %a) {
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%tmp.1 = fptoui float %a to i16
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ret i16 %tmp.1
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}
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