83 lines
1.6 KiB
Plaintext
83 lines
1.6 KiB
Plaintext
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# RUN: llc -march=x86-64 -run-pass none -o - %s | FileCheck %s
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# This test ensures that the MIR parser parses basic block successors correctly.
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--- |
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define i32 @foo(i32 %a) {
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entry:
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%0 = icmp sle i32 %a, 10
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br i1 %0, label %less, label %exit
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less:
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ret i32 0
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exit:
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ret i32 %a
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}
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define i32 @bar(i32 %a) {
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entry:
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%b = icmp sle i32 %a, 10
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br i1 %b, label %0, label %1
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; <label>:0
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ret i32 0
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; <label>:1
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ret i32 %a
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}
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...
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---
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name: foo
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body: |
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; CHECK-LABEL: bb.0.entry:
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; CHECK-LABEL: bb.1.less:
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bb.0.entry:
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successors: %bb.1.less, %bb.2.exit
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liveins: $edi
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CMP32ri8 $edi, 10, implicit-def $eflags
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JCC_1 %bb.2.exit, 15, implicit killed $eflags
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bb.1.less:
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$eax = MOV32r0 implicit-def dead $eflags
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RETQ killed $eax
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bb.2.exit:
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liveins: $edi
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$eax = COPY killed $edi
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RETQ killed $eax
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...
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---
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name: bar
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body: |
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; CHECK-LABEL: name: bar
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; Verify that we can have multiple lists of successors that will be merged
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; into one.
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; CHECK-LABEL: bb.0.entry:
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; CHECK: successors: %bb.1(0x80000000), %bb.2(0x00000000)
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bb.0.entry:
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liveins: $edi
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successors: %bb.1
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successors: %bb.2
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CMP32ri8 $edi, 10, implicit-def $eflags
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JCC_1 %bb.2, 15, implicit killed $eflags
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; Verify that we can have an empty list of successors.
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; CHECK-LABEL: bb.1:
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; CHECK-NEXT: $eax = MOV32r0 implicit-def dead $eflags
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bb.1:
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successors:
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$eax = MOV32r0 implicit-def dead $eflags
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RETQ killed $eax
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bb.2:
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liveins: $edi
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$eax = COPY killed $edi
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RETQ killed $eax
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...
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