Files
clang-p2996/llvm/test/CodeGen/MIR/X86/successor-basic-blocks.mir
Fangrui Song 40a4cbb0f2 [MIR,test] Change llc -march=x86-64 to -mtriple=x86_64
Similar to 806761a762

-mtriple= specifies the full target triple while -march= merely sets the
architecture part of the default target triple (e.g. Windows, macOS).

Therefore, -march= is error-prone and not recommended for tests without
a target triple. The issue has been benign as these MIR tests do not
utilize object file format specific detail, but it's good to change
these tests to neighbor files that use -mtriple=x86_64
2024-12-15 11:23:08 -08:00

83 lines
1.6 KiB
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# RUN: llc -mtriple=x86_64 -run-pass none -o - %s | FileCheck %s
# This test ensures that the MIR parser parses basic block successors correctly.
--- |
define i32 @foo(i32 %a) {
entry:
%0 = icmp sle i32 %a, 10
br i1 %0, label %less, label %exit
less:
ret i32 0
exit:
ret i32 %a
}
define i32 @bar(i32 %a) {
entry:
%b = icmp sle i32 %a, 10
br i1 %b, label %0, label %1
; <label>:0
ret i32 0
; <label>:1
ret i32 %a
}
...
---
name: foo
body: |
; CHECK-LABEL: bb.0.entry:
; CHECK-LABEL: bb.1.less:
bb.0.entry:
successors: %bb.1.less, %bb.2.exit
liveins: $edi
CMP32ri8 $edi, 10, implicit-def $eflags
JCC_1 %bb.2.exit, 15, implicit killed $eflags
bb.1.less:
$eax = MOV32r0 implicit-def dead $eflags
RET64 killed $eax
bb.2.exit:
liveins: $edi
$eax = COPY killed $edi
RET64 killed $eax
...
---
name: bar
body: |
; CHECK-LABEL: name: bar
; Verify that we can have multiple lists of successors that will be merged
; into one.
; CHECK-LABEL: bb.0.entry:
; CHECK: successors: %bb.1(0x80000000), %bb.2(0x00000000)
bb.0.entry:
liveins: $edi
successors: %bb.1
successors: %bb.2
CMP32ri8 $edi, 10, implicit-def $eflags
JCC_1 %bb.2, 15, implicit killed $eflags
; Verify that we can have an empty list of successors.
; CHECK-LABEL: bb.1:
; CHECK-NEXT: $eax = MOV32r0 implicit-def dead $eflags
bb.1:
successors:
$eax = MOV32r0 implicit-def dead $eflags
RET64 killed $eax
bb.2:
liveins: $edi
$eax = COPY killed $edi
RET64 killed $eax
...