| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple powerpc64le-unknown-linux | FileCheck %s |
| ; RUN: llc < %s -mtriple powerpc64le-unknown-linux -debug-only=machine-scheduler \ |
| ; RUN: 2>&1 | FileCheck %s --check-prefix=LOG |
| ; REQUIRES: DEBUG |
| |
| define double @in_nostrict(double %a, double %b, double %c, double %d) { |
| ; CHECK-LABEL: in_nostrict: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: mffs 0 |
| ; CHECK-NEXT: xsdivdp 1, 1, 2 |
| ; CHECK-NEXT: xsadddp 1, 1, 3 |
| ; CHECK-NEXT: xsadddp 0, 1, 0 |
| ; CHECK-NEXT: mtfsf 255, 4 |
| ; CHECK-NEXT: xsdivdp 1, 3, 4 |
| ; CHECK-NEXT: xsadddp 1, 1, 2 |
| ; CHECK-NEXT: xsadddp 1, 0, 1 |
| ; CHECK-NEXT: blr |
| ; |
| ; LOG: *** MI Scheduling *** |
| ; LOG-NEXT: in_nostrict:%bb.0 entry |
| ; LOG: ExitSU: MTFSF 255, %{{[0-9]+}}:f8rc, 0, 0 |
| ; LOG: *** MI Scheduling *** |
| ; LOG-NEXT: in_nostrict:%bb.0 entry |
| ; LOG: ExitSU: %{{[0-9]+}}:f8rc = MFFS implicit $rm |
| ; |
| ; LOG: *** MI Scheduling *** |
| ; LOG-NEXT: in_nostrict:%bb.0 entry |
| ; LOG: ExitSU: MTFSF 255, renamable $f{{[0-9]+}}, 0, 0 |
| entry: |
| %0 = tail call double @llvm.ppc.readflm() |
| %1 = fdiv double %a, %b |
| %2 = fadd double %1, %c |
| %3 = fadd double %2, %0 |
| call double @llvm.ppc.setflm(double %d) |
| %5 = fdiv double %c, %d |
| %6 = fadd double %5, %b |
| %7 = fadd double %3, %6 |
| ret double %7 |
| } |
| |
| define double @in_strict(double %a, double %b, double %c, double %d) #0 { |
| ; CHECK-LABEL: in_strict: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: mffs 0 |
| ; CHECK-NEXT: xsdivdp 1, 1, 2 |
| ; CHECK-NEXT: xsadddp 1, 1, 3 |
| ; CHECK-NEXT: xsadddp 0, 1, 0 |
| ; CHECK-NEXT: mtfsf 255, 4 |
| ; CHECK-NEXT: xsdivdp 1, 3, 4 |
| ; CHECK-NEXT: xsadddp 1, 1, 2 |
| ; CHECK-NEXT: xsadddp 1, 0, 1 |
| ; CHECK-NEXT: blr |
| ; |
| ; LOG: ***** MI Scheduling ***** |
| ; LOG-NEXT: in_strict:%bb.0 entry |
| ; LOG: ExitSU: MTFSF 255, %{{[0-9]+}}:f8rc, 0, 0 |
| ; LOG: ***** MI Scheduling ***** |
| ; LOG-NEXT: in_strict:%bb.0 entry |
| ; LOG: ExitSU: %{{[0-9]+}}:f8rc = MFFS implicit $rm |
| ; |
| ; LOG: ***** MI Scheduling ***** |
| ; LOG-NEXT: in_strict:%bb.0 entry |
| ; LOG: ExitSU: MTFSF 255, renamable $f{{[0-9]+}}, 0, 0 |
| entry: |
| %0 = tail call double @llvm.ppc.readflm() |
| %1 = call double @llvm.experimental.constrained.fdiv.f64(double %a, double %b, metadata !"round.dynamic", metadata !"fpexcept.strict") #0 |
| %2 = call double @llvm.experimental.constrained.fadd.f64(double %1, double %c, metadata !"round.dynamic", metadata !"fpexcept.strict") #0 |
| %3 = call double @llvm.experimental.constrained.fadd.f64(double %2, double %0, metadata !"round.dynamic", metadata !"fpexcept.strict") #0 |
| call double @llvm.ppc.setflm(double %d) |
| %5 = call double @llvm.experimental.constrained.fdiv.f64(double %c, double %d, metadata !"round.dynamic", metadata !"fpexcept.strict") #0 |
| %6 = call double @llvm.experimental.constrained.fadd.f64(double %5, double %b, metadata !"round.dynamic", metadata !"fpexcept.strict") #0 |
| %7 = call double @llvm.experimental.constrained.fadd.f64(double %3, double %6, metadata !"round.dynamic", metadata !"fpexcept.strict") #0 |
| ret double %7 |
| } |
| |
| define void @cse_nomerge(double* %f1, double* %f2, double %f3) #0 { |
| ; CHECK-LABEL: cse_nomerge: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: mflr 0 |
| ; CHECK-NEXT: .cfi_def_cfa_offset 64 |
| ; CHECK-NEXT: .cfi_offset lr, 16 |
| ; CHECK-NEXT: .cfi_offset r30, -24 |
| ; CHECK-NEXT: .cfi_offset f31, -8 |
| ; CHECK-NEXT: std 30, -24(1) # 8-byte Folded Spill |
| ; CHECK-NEXT: stfd 31, -8(1) # 8-byte Folded Spill |
| ; CHECK-NEXT: std 0, 16(1) |
| ; CHECK-NEXT: stdu 1, -64(1) |
| ; CHECK-NEXT: fmr 31, 1 |
| ; CHECK-NEXT: mr 30, 4 |
| ; CHECK-NEXT: mffs 0 |
| ; CHECK-NEXT: stfd 0, 0(3) |
| ; CHECK-NEXT: bl effect_func |
| ; CHECK-NEXT: nop |
| ; CHECK-NEXT: mffs 0 |
| ; CHECK-NEXT: stfd 0, 0(30) |
| ; CHECK-NEXT: mtfsf 255, 31 |
| ; CHECK-NEXT: addi 1, 1, 64 |
| ; CHECK-NEXT: ld 0, 16(1) |
| ; CHECK-NEXT: lfd 31, -8(1) # 8-byte Folded Reload |
| ; CHECK-NEXT: ld 30, -24(1) # 8-byte Folded Reload |
| ; CHECK-NEXT: mtlr 0 |
| ; CHECK-NEXT: blr |
| entry: |
| %0 = call double @llvm.ppc.readflm() |
| store double %0, double* %f1, align 8 |
| call void @effect_func() |
| %1 = call double @llvm.ppc.readflm() |
| store double %1, double* %f2, align 8 |
| %2 = call contract double @llvm.ppc.setflm(double %f3) |
| ret void |
| } |
| |
| define void @cse_nomerge_readonly(double* %f1, double* %f2, double %f3) #0 { |
| ; CHECK-LABEL: cse_nomerge_readonly: |
| ; CHECK: # %bb.0: # %entry |
| ; CHECK-NEXT: mflr 0 |
| ; CHECK-NEXT: .cfi_def_cfa_offset 64 |
| ; CHECK-NEXT: .cfi_offset lr, 16 |
| ; CHECK-NEXT: .cfi_offset r30, -24 |
| ; CHECK-NEXT: .cfi_offset f31, -8 |
| ; CHECK-NEXT: std 30, -24(1) # 8-byte Folded Spill |
| ; CHECK-NEXT: stfd 31, -8(1) # 8-byte Folded Spill |
| ; CHECK-NEXT: std 0, 16(1) |
| ; CHECK-NEXT: stdu 1, -64(1) |
| ; CHECK-NEXT: fmr 31, 1 |
| ; CHECK-NEXT: mr 30, 4 |
| ; CHECK-NEXT: mffs 0 |
| ; CHECK-NEXT: stfd 0, 0(3) |
| ; CHECK-NEXT: bl readonly_func |
| ; CHECK-NEXT: nop |
| ; CHECK-NEXT: mffs 0 |
| ; CHECK-NEXT: stfd 0, 0(30) |
| ; CHECK-NEXT: mtfsf 255, 31 |
| ; CHECK-NEXT: addi 1, 1, 64 |
| ; CHECK-NEXT: ld 0, 16(1) |
| ; CHECK-NEXT: lfd 31, -8(1) # 8-byte Folded Reload |
| ; CHECK-NEXT: ld 30, -24(1) # 8-byte Folded Reload |
| ; CHECK-NEXT: mtlr 0 |
| ; CHECK-NEXT: blr |
| entry: |
| %0 = call double @llvm.ppc.readflm() |
| store double %0, double* %f1, align 8 |
| call void @readonly_func() |
| %1 = call double @llvm.ppc.readflm() |
| store double %1, double* %f2, align 8 |
| %2 = call contract double @llvm.ppc.setflm(double %f3) |
| ret void |
| } |
| |
| declare void @effect_func() |
| declare void @readonly_func() #1 |
| declare double @llvm.ppc.readflm() |
| declare double @llvm.ppc.setflm(double) |
| declare double @llvm.experimental.constrained.fadd.f64(double, double, metadata, metadata) |
| declare double @llvm.experimental.constrained.fdiv.f64(double, double, metadata, metadata) |
| |
| attributes #0 = { strictfp } |
| attributes #1 = { readonly } |