43 lines
1015 B
YAML
43 lines
1015 B
YAML
# RUN: rm -f %S/arm64-regress-opt-cmp.s
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# RUN: llc -mtriple=aarch64-linux-gnu -run-pass peephole-opt -o - %s 2>&1 | FileCheck %s
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# CHECK: %1 = ANDWri {{.*}}
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# CHECK-NEXT: %wzr = SUBSWri {{.*}}
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--- |
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define i32 @test01() nounwind {
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entry:
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%0 = select i1 true, i32 1, i32 0
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%1 = and i32 %0, 65535
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%2 = icmp ugt i32 %1, 0
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br i1 %2, label %if.then, label %if.end
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if.then: ; preds = %entry
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ret i32 1
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if.end: ; preds = %entry
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ret i32 0
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}
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...
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---
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name: test01
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registers:
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- { id: 0, class: gpr32 }
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- { id: 1, class: gpr32common }
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body: |
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bb.0.entry:
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successors: %bb.2.if.end, %bb.1.if.then
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%0 = MOVi32imm 1
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%1 = ANDWri killed %1, 15
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%wzr = SUBSWri killed %1, 0, 0, implicit-def %nzcv
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Bcc 9, %bb.2.if.end, implicit %nzcv
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bb.1.if.then:
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%w0 = MOVi32imm 1
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RET_ReallyLR implicit %w0
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bb.2.if.end:
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%w0 = MOVi32imm 0
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RET_ReallyLR implicit %w0
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...
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