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b425bc6346
This provides intrinsics for emitting instructions that set the FPSCR (`mtfsf/mtfsfi`). The patch also conservatively marks the rounding mode as an implicit def for both since they both may set the rounding mode depending on the operands. Reviewed By: #powerpc, qiucf Differential Revision: https://reviews.llvm.org/D105957
122 lines
3.4 KiB
LLVM
122 lines
3.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu < %s | \
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; RUN: FileCheck %s
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; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-aix -mcpu=pwr7 \
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; RUN: < %s | FileCheck %s --check-prefix=CHECK-AIX64
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; RUN: llc -verify-machineinstrs -mtriple=powerpc-unknown-aix -mcpu=pwr8 < %s | \
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; RUN: FileCheck %s --check-prefix=CHECK-AIX32
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define dso_local void @mtfsb0() local_unnamed_addr #0 {
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; CHECK-PWR8-LABEL: mtfsb0:
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; CHECK-PWR8: # %bb.0: # %entry
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; CHECK-PWR8-NEXT: mtfsb0 10
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; CHECK-PWR8-NEXT: blr
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;
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; CHECK-PWR7-LABEL: mtfsb0:
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; CHECK-PWR7: # %bb.0: # %entry
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; CHECK-PWR7-NEXT: mtfsb0 10
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; CHECK-PWR7-NEXT: blr
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; CHECK-LABEL: mtfsb0:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: mtfsb0 10
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; CHECK-NEXT: blr
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;
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; CHECK-AIX64-LABEL: mtfsb0:
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; CHECK-AIX64: # %bb.0: # %entry
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; CHECK-AIX64-NEXT: mtfsb0 10
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; CHECK-AIX64-NEXT: blr
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;
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; CHECK-AIX32-LABEL: mtfsb0:
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; CHECK-AIX32: # %bb.0: # %entry
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; CHECK-AIX32-NEXT: mtfsb0 10
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; CHECK-AIX32-NEXT: blr
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entry:
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tail call void @llvm.ppc.mtfsb0(i32 10)
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ret void
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}
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define dso_local void @mtfsb1() local_unnamed_addr #0 {
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; CHECK-PWR8-LABEL: mtfsb1:
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; CHECK-PWR8: # %bb.0: # %entry
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; CHECK-PWR8-NEXT: mtfsb1 0
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; CHECK-PWR8-NEXT: blr
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;
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; CHECK-PWR7-LABEL: mtfsb1:
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; CHECK-PWR7: # %bb.0: # %entry
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; CHECK-PWR7-NEXT: mtfsb1 0
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; CHECK-PWR7-NEXT: blr
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; CHECK-LABEL: mtfsb1:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: mtfsb1 0
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; CHECK-NEXT: blr
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;
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; CHECK-AIX64-LABEL: mtfsb1:
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; CHECK-AIX64: # %bb.0: # %entry
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; CHECK-AIX64-NEXT: mtfsb1 0
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; CHECK-AIX64-NEXT: blr
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;
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; CHECK-AIX32-LABEL: mtfsb1:
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; CHECK-AIX32: # %bb.0: # %entry
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; CHECK-AIX32-NEXT: mtfsb1 0
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; CHECK-AIX32-NEXT: blr
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entry:
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tail call void @llvm.ppc.mtfsb1(i32 0)
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ret void
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}
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define dso_local void @callmtfsf(i32 zeroext %a) local_unnamed_addr {
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; CHECK-LABEL: callmtfsf:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: mtfprwz 0, 3
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; CHECK-NEXT: xscvuxddp 0, 0
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; CHECK-NEXT: mtfsf 7, 0
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; CHECK-NEXT: blr
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;
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; CHECK-AIX64-LABEL: callmtfsf:
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; CHECK-AIX64: # %bb.0: # %entry
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; CHECK-AIX64-NEXT: addi 4, 1, -4
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; CHECK-AIX64-NEXT: stw 3, -4(1)
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; CHECK-AIX64-NEXT: lfiwzx 0, 0, 4
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; CHECK-AIX64-NEXT: xscvuxddp 0, 0
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; CHECK-AIX64-NEXT: mtfsf 7, 0
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; CHECK-AIX64-NEXT: blr
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;
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; CHECK-AIX32-LABEL: callmtfsf:
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; CHECK-AIX32: # %bb.0: # %entry
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; CHECK-AIX32-NEXT: addi 4, 1, -4
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; CHECK-AIX32-NEXT: stw 3, -4(1)
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; CHECK-AIX32-NEXT: lfiwzx 0, 0, 4
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; CHECK-AIX32-NEXT: xscvuxddp 0, 0
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; CHECK-AIX32-NEXT: mtfsf 7, 0
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; CHECK-AIX32-NEXT: blr
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entry:
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%0 = uitofp i32 %a to double
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tail call void @llvm.ppc.mtfsf(i32 7, double %0)
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ret void
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}
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define dso_local void @callmtfsfi(i32 zeroext %a) local_unnamed_addr {
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; CHECK-LABEL: callmtfsfi:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: mtfsfi 1, 3
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; CHECK-NEXT: blr
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;
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; CHECK-AIX64-LABEL: callmtfsfi:
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; CHECK-AIX64: # %bb.0: # %entry
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; CHECK-AIX64-NEXT: mtfsfi 1, 3
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; CHECK-AIX64-NEXT: blr
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;
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; CHECK-AIX32-LABEL: callmtfsfi:
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; CHECK-AIX32: # %bb.0: # %entry
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; CHECK-AIX32-NEXT: mtfsfi 1, 3
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; CHECK-AIX32-NEXT: blr
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entry:
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tail call void @llvm.ppc.mtfsfi(i32 1, i32 3)
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ret void
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}
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declare void @llvm.ppc.mtfsb0(i32)
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declare void @llvm.ppc.mtfsb1(i32)
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declare void @llvm.ppc.mtfsfi(i32, i32)
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declare void @llvm.ppc.mtfsf(i32, double)
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