llvm-project/llvm/test/CodeGen/X86/GlobalISel/legalize-fsub-scalar.mir

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# RUN: llc -mtriple=x86_64-linux-gnu -global-isel -run-pass=legalizer %s -o - | FileCheck %s
--- |
define float @test_fsub_float(float %arg1, float %arg2) {
%ret = fsub float %arg1, %arg2
ret float %ret
}
define double @test_fsub_double(double %arg1, double %arg2) {
%ret = fsub double %arg1, %arg2
ret double %ret
}
...
---
name: test_fsub_float
# CHECK-LABEL: name: test_fsub_float
alignment: 4
legalized: false
regBankSelected: false
registers:
- { id: 0, class: _, preferred-register: '' }
- { id: 1, class: _, preferred-register: '' }
- { id: 2, class: _, preferred-register: '' }
liveins:
fixedStack:
stack:
constants:
# CHECK: %0(s32) = COPY %xmm0
# CHECK-NEXT: %1(s32) = COPY %xmm1
# CHECK-NEXT: %2(s32) = G_FSUB %0, %1
# CHECK-NEXT: %xmm0 = COPY %2(s32)
# CHECK-NEXT: RET 0, implicit %xmm0
body: |
bb.1 (%ir-block.0):
liveins: %xmm0, %xmm1
%0(s32) = COPY %xmm0
%1(s32) = COPY %xmm1
%2(s32) = G_FSUB %0, %1
%xmm0 = COPY %2(s32)
RET 0, implicit %xmm0
...
---
name: test_fsub_double
# CHECK-LABEL: name: test_fsub_double
alignment: 4
legalized: false
regBankSelected: false
registers:
- { id: 0, class: _, preferred-register: '' }
- { id: 1, class: _, preferred-register: '' }
- { id: 2, class: _, preferred-register: '' }
liveins:
fixedStack:
stack:
constants:
# CHECK: %0(s64) = COPY %xmm0
# CHECK-NEXT: %1(s64) = COPY %xmm1
# CHECK-NEXT: %2(s64) = G_FSUB %0, %1
# CHECK-NEXT: %xmm0 = COPY %2(s64)
# CHECK-NEXT: RET 0, implicit %xmm0
body: |
bb.1 (%ir-block.0):
liveins: %xmm0, %xmm1
%0(s64) = COPY %xmm0
%1(s64) = COPY %xmm1
%2(s64) = G_FSUB %0, %1
%xmm0 = COPY %2(s64)
RET 0, implicit %xmm0
...