240 lines
4.8 KiB
LLVM
240 lines
4.8 KiB
LLVM
; RUN: llc < %s -march=x86-64 | FileCheck %s
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declare void @bar()
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define void @test1(i32* nocapture %X) nounwind minsize {
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entry:
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%tmp1 = load i32, i32* %X, align 4
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%and = and i32 %tmp1, 255
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%cmp = icmp eq i32 %and, 47
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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tail call void @bar() nounwind
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br label %if.end
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if.end:
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ret void
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; CHECK-LABEL: test1:
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; CHECK: cmpb $47, (%{{rdi|rcx}})
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}
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define void @test2(i32 %X) nounwind minsize {
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entry:
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%and = and i32 %X, 255
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%cmp = icmp eq i32 %and, 47
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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tail call void @bar() nounwind
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br label %if.end
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if.end:
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ret void
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; CHECK-LABEL: test2:
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; CHECK: cmpb $47, %{{dil|cl}}
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}
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define void @test3(i32 %X) nounwind minsize {
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entry:
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%and = and i32 %X, 255
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%cmp = icmp eq i32 %and, 255
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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tail call void @bar() nounwind
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br label %if.end
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if.end:
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ret void
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; CHECK-LABEL: test3:
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; CHECK: cmpb $-1, %{{dil|cl}}
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}
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; PR16083
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define i1 @test4(i64 %a, i32 %b) {
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entry:
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%tobool = icmp ne i32 %b, 0
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br i1 %tobool, label %lor.end, label %lor.rhs
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lor.rhs: ; preds = %entry
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%and = and i64 0, %a
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%tobool1 = icmp ne i64 %and, 0
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br label %lor.end
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lor.end: ; preds = %lor.rhs, %entry
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%p = phi i1 [ true, %entry ], [ %tobool1, %lor.rhs ]
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ret i1 %p
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}
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@x = global { i8, i8, i8, i8, i8, i8, i8, i8 } { i8 1, i8 0, i8 0, i8 0, i8 1, i8 0, i8 0, i8 1 }, align 4
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; PR16551
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define void @test5(i32 %X) nounwind minsize {
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entry:
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%bf.load = load i56, i56* bitcast ({ i8, i8, i8, i8, i8, i8, i8, i8 }* @x to i56*), align 4
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%bf.lshr = lshr i56 %bf.load, 32
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%bf.cast = trunc i56 %bf.lshr to i32
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%cmp = icmp ne i32 %bf.cast, 1
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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tail call void @bar() nounwind
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br label %if.end
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if.end:
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ret void
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; CHECK-LABEL: test5:
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; CHECK-NOT: cmpl $1,{{.*}}x+4
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; CHECK: ret
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}
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; CHECK-LABEL: test2_1:
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; CHECK: movzbl
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; CHECK: cmpl $256
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; CHECK: jne
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define void @test2_1(i32 %X) nounwind minsize {
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entry:
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%and = and i32 %X, 255
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%cmp = icmp eq i32 %and, 256
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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tail call void @bar() nounwind
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br label %if.end
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if.end:
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ret void
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}
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; CHECK-LABEL: test_sext_i8_icmp_1:
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; CHECK: cmpb $1, %{{dil|cl}}
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define void @test_sext_i8_icmp_1(i8 %x) nounwind minsize {
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entry:
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%sext = sext i8 %x to i32
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%cmp = icmp eq i32 %sext, 1
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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tail call void @bar() nounwind
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br label %if.end
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if.end:
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ret void
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}
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; CHECK-LABEL: test_sext_i8_icmp_47:
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; CHECK: cmpb $47, %{{dil|cl}}
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define void @test_sext_i8_icmp_47(i8 %x) nounwind minsize {
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entry:
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%sext = sext i8 %x to i32
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%cmp = icmp eq i32 %sext, 47
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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tail call void @bar() nounwind
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br label %if.end
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if.end:
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ret void
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}
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; CHECK-LABEL: test_sext_i8_icmp_127:
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; CHECK: cmpb $127, %{{dil|cl}}
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define void @test_sext_i8_icmp_127(i8 %x) nounwind minsize {
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entry:
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%sext = sext i8 %x to i32
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%cmp = icmp eq i32 %sext, 127
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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tail call void @bar() nounwind
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br label %if.end
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if.end:
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ret void
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}
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; CHECK-LABEL: test_sext_i8_icmp_neg1:
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; CHECK: cmpb $-1, %{{dil|cl}}
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define void @test_sext_i8_icmp_neg1(i8 %x) nounwind minsize {
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entry:
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%sext = sext i8 %x to i32
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%cmp = icmp eq i32 %sext, -1
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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tail call void @bar() nounwind
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br label %if.end
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if.end:
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ret void
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}
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; CHECK-LABEL: test_sext_i8_icmp_neg2:
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; CHECK: cmpb $-2, %{{dil|cl}}
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define void @test_sext_i8_icmp_neg2(i8 %x) nounwind minsize {
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entry:
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%sext = sext i8 %x to i32
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%cmp = icmp eq i32 %sext, -2
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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tail call void @bar() nounwind
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br label %if.end
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if.end:
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ret void
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}
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; CHECK-LABEL: test_sext_i8_icmp_neg127:
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; CHECK: cmpb $-127, %{{dil|cl}}
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define void @test_sext_i8_icmp_neg127(i8 %x) nounwind minsize {
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entry:
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%sext = sext i8 %x to i32
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%cmp = icmp eq i32 %sext, -127
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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tail call void @bar() nounwind
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br label %if.end
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if.end:
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ret void
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}
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; CHECK-LABEL: test_sext_i8_icmp_neg128:
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; CHECK: cmpb $-128, %{{dil|cl}}
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define void @test_sext_i8_icmp_neg128(i8 %x) nounwind minsize {
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entry:
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%sext = sext i8 %x to i32
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%cmp = icmp eq i32 %sext, -128
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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tail call void @bar() nounwind
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br label %if.end
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if.end:
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ret void
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}
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; CHECK-LABEL: test_sext_i8_icmp_255:
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; CHECK: movb $1,
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; CHECK: testb
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; CHECK: jne
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define void @test_sext_i8_icmp_255(i8 %x) nounwind minsize {
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entry:
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%sext = sext i8 %x to i32
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%cmp = icmp eq i32 %sext, 255
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br i1 %cmp, label %if.then, label %if.end
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if.then:
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tail call void @bar() nounwind
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br label %if.end
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if.end:
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ret void
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}
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