kernel-fp-round.ll
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; RUN: llc -simplify-mir -verify-machineinstrs -stop-after=finalize-isel \
; RUN: -mtriple=powerpc64le-unknown-unknown -mattr=-vsx < %s | FileCheck %s
; RUN: llc -simplify-mir -verify-machineinstrs -stop-after=finalize-isel \
; RUN: -mtriple=powerpc-unknown-unknown -mcpu=pwr6 -mattr=-vsx < %s | \
; RUN: FileCheck --check-prefix=CHECK-P6 %s
; RUN: llc -simplify-mir -verify-machineinstrs -stop-after=finalize-isel \
; RUN: -mtriple=powerpc64-unknown-unknown -mcpu=pwr6 -mattr=-vsx < %s | \
; RUN: FileCheck --check-prefix=CHECK-P6-64 %s
define float @test(float %a) {
; CHECK: stack:
; CHECK-NEXT: - { id: 0, size: 4, alignment: 4 }
; CHECK: %2:f8rc = nofpexcept FCTIWZ killed %1, implicit $rm
; CHECK: STFIWX killed %2, $zero8, %3
; CHECK-NEXT: %4:f8rc = LFIWAX $zero8, %3 :: (load 4 from %stack.0)
; CHECK-NEXT: %5:f4rc = nofpexcept FCFIDS killed %4, implicit $rm
; CHECK-NEXT: $f1 = COPY %5
; CHECK-NEXT: BLR8 implicit $lr8, implicit $rm, implicit $f1
; CHECK-P6: stack:
; CHECK-P6-NEXT: - { id: 0, size: 4, alignment: 4 }
; CHECK-P6: %2:f8rc = nofpexcept FCTIWZ killed %1, implicit $rm
; CHECK-P6: STFIWX killed %2, $zero, %3
; CHECK-P6-NEXT: %4:f8rc = LFIWAX $zero, %3 :: (load 4 from %stack.0)
; CHECK-P6-NEXT: %5:f8rc = nofpexcept FCFID killed %4, implicit $rm
; CHECK-P6-NEXT: %6:f4rc = nofpexcept FRSP killed %5, implicit $rm
; CHECK-P6-NEXT: $f1 = COPY %6
; CHECK-P6-NEXT: BLR implicit $lr, implicit $rm, implicit $f1
; CHECK-P6-64: stack:
; CHECK-P6-64-NEXT: - { id: 0, size: 4, alignment: 4 }
; CHECK-P6-64: %2:f8rc = nofpexcept FCTIWZ killed %1, implicit $rm
; CHECK-P6-64: STFIWX killed %2, $zero8, %3
; CHECK-P6-64-NEXT: %4:f8rc = LFIWAX $zero8, %3 :: (load 4 from %stack.0)
; CHECK-P6-64-NEXT: %5:f8rc = nofpexcept FCFID killed %4, implicit $rm
; CHECK-P6-64-NEXT: %6:f4rc = nofpexcept FRSP killed %5, implicit $rm
; CHECK-P6-64-NEXT: $f1 = COPY %6
; CHECK-P6-64-NEXT: BLR8 implicit $lr8, implicit $rm, implicit $f1
entry:
%b = fptosi float %a to i32
%c = sitofp i32 %b to float
ret float %c
}