d391e4fe84
Be more consistent in the naming convention for the various RET instructions to specify in terms of bitwidth. Helps prevent future scheduler model mismatches like those that were only addressed in D44687. Differential Revision: https://reviews.llvm.org/D113302
83 lines
1.6 KiB
YAML
83 lines
1.6 KiB
YAML
# 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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RET64 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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RET64 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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RET64 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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RET64 killed $eax
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...
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