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llvm-project/llvm/test/CodeGen/PowerPC/scalar-min-max.ll
Nemanja Ivanovic 25a41ad242 [PowerPC] Emit scalar fp min/max instructions 
VSX provides floating point minimum and maximum instructions that conform
to IEEE semantics. This legalizes the respective nodes and emits VSX code
for them. Furthermore, on Power9 cores we have xsmaxcdp and xsmincdp
instructions that conform to language semantics for the conditional operator
even in the presence of NaNs.

Differential revision: https://reviews.llvm.org/D62993
2019-10-28 19:13:33 -05:00

204 lines
6.3 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mcpu=pwr8 -ppc-asm-full-reg-names --enable-unsafe-fp-math \
; RUN: -verify-machineinstrs --enable-no-signed-zeros-fp-math \
; RUN: --enable-no-nans-fp-math \
; RUN: -mtriple=powerpc64le-unknown-unknown < %s | FileCheck %s
; RUN: llc -mcpu=pwr9 -ppc-asm-full-reg-names --enable-unsafe-fp-math \
; RUN: -verify-machineinstrs --enable-no-signed-zeros-fp-math \
; RUN: --enable-no-nans-fp-math \
; RUN: -mtriple=powerpc64le-unknown-unknown < %s | FileCheck %s
; RUN: llc -mcpu=pwr9 -ppc-asm-full-reg-names -verify-machineinstrs \
; RUN: -mtriple=powerpc64le-unknown-unknown < %s | FileCheck %s \
; RUN: --check-prefix=NO-FAST-P9
; RUN: llc -mcpu=pwr8 -ppc-asm-full-reg-names -verify-machineinstrs \
; RUN: -mtriple=powerpc64le-unknown-unknown < %s | FileCheck %s \
; RUN: --check-prefix=NO-FAST-P8
define dso_local float @testfmax(float %a, float %b) local_unnamed_addr {
; CHECK-LABEL: testfmax:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: xsmaxdp f1, f1, f2
; CHECK-NEXT: blr
;
; NO-FAST-P9-LABEL: testfmax:
; NO-FAST-P9: # %bb.0: # %entry
; NO-FAST-P9-NEXT: xsmaxcdp f1, f1, f2
; NO-FAST-P9-NEXT: blr
;
; NO-FAST-P8-LABEL: testfmax:
; NO-FAST-P8: # %bb.0: # %entry
; NO-FAST-P8-NEXT: fcmpu cr0, f1, f2
; NO-FAST-P8-NEXT: bgtlr cr0
; NO-FAST-P8-NEXT: # %bb.1: # %entry
; NO-FAST-P8-NEXT: fmr f1, f2
; NO-FAST-P8-NEXT: blr
entry:
%cmp = fcmp ogt float %a, %b
%cond = select i1 %cmp, float %a, float %b
ret float %cond
}
define dso_local double @testdmax(double %a, double %b) local_unnamed_addr {
; CHECK-LABEL: testdmax:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: xsmaxdp f1, f1, f2
; CHECK-NEXT: blr
;
; NO-FAST-P9-LABEL: testdmax:
; NO-FAST-P9: # %bb.0: # %entry
; NO-FAST-P9-NEXT: xsmaxcdp f1, f1, f2
; NO-FAST-P9-NEXT: blr
;
; NO-FAST-P8-LABEL: testdmax:
; NO-FAST-P8: # %bb.0: # %entry
; NO-FAST-P8-NEXT: xscmpudp cr0, f1, f2
; NO-FAST-P8-NEXT: bgtlr cr0
; NO-FAST-P8-NEXT: # %bb.1: # %entry
; NO-FAST-P8-NEXT: fmr f1, f2
; NO-FAST-P8-NEXT: blr
entry:
%cmp = fcmp ogt double %a, %b
%cond = select i1 %cmp, double %a, double %b
ret double %cond
}
define dso_local float @testfmin(float %a, float %b) local_unnamed_addr {
; CHECK-LABEL: testfmin:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: xsmindp f1, f1, f2
; CHECK-NEXT: blr
;
; NO-FAST-P9-LABEL: testfmin:
; NO-FAST-P9: # %bb.0: # %entry
; NO-FAST-P9-NEXT: xsmincdp f1, f1, f2
; NO-FAST-P9-NEXT: blr
;
; NO-FAST-P8-LABEL: testfmin:
; NO-FAST-P8: # %bb.0: # %entry
; NO-FAST-P8-NEXT: fcmpu cr0, f1, f2
; NO-FAST-P8-NEXT: bltlr cr0
; NO-FAST-P8-NEXT: # %bb.1: # %entry
; NO-FAST-P8-NEXT: fmr f1, f2
; NO-FAST-P8-NEXT: blr
entry:
%cmp = fcmp olt float %a, %b
%cond = select i1 %cmp, float %a, float %b
ret float %cond
}
define dso_local double @testdmin(double %a, double %b) local_unnamed_addr {
; CHECK-LABEL: testdmin:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: xsmindp f1, f1, f2
; CHECK-NEXT: blr
;
; NO-FAST-P9-LABEL: testdmin:
; NO-FAST-P9: # %bb.0: # %entry
; NO-FAST-P9-NEXT: xsmincdp f1, f1, f2
; NO-FAST-P9-NEXT: blr
;
; NO-FAST-P8-LABEL: testdmin:
; NO-FAST-P8: # %bb.0: # %entry
; NO-FAST-P8-NEXT: xscmpudp cr0, f1, f2
; NO-FAST-P8-NEXT: bltlr cr0
; NO-FAST-P8-NEXT: # %bb.1: # %entry
; NO-FAST-P8-NEXT: fmr f1, f2
; NO-FAST-P8-NEXT: blr
entry:
%cmp = fcmp olt double %a, %b
%cond = select i1 %cmp, double %a, double %b
ret double %cond
}
define dso_local float @testfmax_fast(float %a, float %b) local_unnamed_addr {
; CHECK-LABEL: testfmax_fast:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: xsmaxdp f1, f1, f2
; CHECK-NEXT: blr
;
; NO-FAST-P9-LABEL: testfmax_fast:
; NO-FAST-P9: # %bb.0: # %entry
; NO-FAST-P9-NEXT: xsmaxcdp f1, f1, f2
; NO-FAST-P9-NEXT: blr
;
; NO-FAST-P8-LABEL: testfmax_fast:
; NO-FAST-P8: # %bb.0: # %entry
; NO-FAST-P8-NEXT: fcmpu cr0, f1, f2
; NO-FAST-P8-NEXT: bgtlr cr0
; NO-FAST-P8-NEXT: # %bb.1: # %entry
; NO-FAST-P8-NEXT: fmr f1, f2
; NO-FAST-P8-NEXT: blr
entry:
%cmp = fcmp fast ogt float %a, %b
%cond = select i1 %cmp, float %a, float %b
ret float %cond
}
define dso_local double @testdmax_fast(double %a, double %b) local_unnamed_addr {
; CHECK-LABEL: testdmax_fast:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: xsmaxdp f1, f1, f2
; CHECK-NEXT: blr
;
; NO-FAST-P9-LABEL: testdmax_fast:
; NO-FAST-P9: # %bb.0: # %entry
; NO-FAST-P9-NEXT: xsmaxcdp f1, f1, f2
; NO-FAST-P9-NEXT: blr
;
; NO-FAST-P8-LABEL: testdmax_fast:
; NO-FAST-P8: # %bb.0: # %entry
; NO-FAST-P8-NEXT: xscmpudp cr0, f1, f2
; NO-FAST-P8-NEXT: bgtlr cr0
; NO-FAST-P8-NEXT: # %bb.1: # %entry
; NO-FAST-P8-NEXT: fmr f1, f2
; NO-FAST-P8-NEXT: blr
entry:
%cmp = fcmp fast ogt double %a, %b
%cond = select i1 %cmp, double %a, double %b
ret double %cond
}
define dso_local float @testfmin_fast(float %a, float %b) local_unnamed_addr {
; CHECK-LABEL: testfmin_fast:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: xsmindp f1, f1, f2
; CHECK-NEXT: blr
;
; NO-FAST-P9-LABEL: testfmin_fast:
; NO-FAST-P9: # %bb.0: # %entry
; NO-FAST-P9-NEXT: xsmincdp f1, f1, f2
; NO-FAST-P9-NEXT: blr
;
; NO-FAST-P8-LABEL: testfmin_fast:
; NO-FAST-P8: # %bb.0: # %entry
; NO-FAST-P8-NEXT: fcmpu cr0, f1, f2
; NO-FAST-P8-NEXT: bltlr cr0
; NO-FAST-P8-NEXT: # %bb.1: # %entry
; NO-FAST-P8-NEXT: fmr f1, f2
; NO-FAST-P8-NEXT: blr
entry:
%cmp = fcmp fast olt float %a, %b
%cond = select i1 %cmp, float %a, float %b
ret float %cond
}
define dso_local double @testdmin_fast(double %a, double %b) local_unnamed_addr {
; CHECK-LABEL: testdmin_fast:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: xsmindp f1, f1, f2
; CHECK-NEXT: blr
;
; NO-FAST-P9-LABEL: testdmin_fast:
; NO-FAST-P9: # %bb.0: # %entry
; NO-FAST-P9-NEXT: xsmincdp f1, f1, f2
; NO-FAST-P9-NEXT: blr
;
; NO-FAST-P8-LABEL: testdmin_fast:
; NO-FAST-P8: # %bb.0: # %entry
; NO-FAST-P8-NEXT: xscmpudp cr0, f1, f2
; NO-FAST-P8-NEXT: bltlr cr0
; NO-FAST-P8-NEXT: # %bb.1: # %entry
; NO-FAST-P8-NEXT: fmr f1, f2
; NO-FAST-P8-NEXT: blr
entry:
%cmp = fcmp fast olt double %a, %b
%cond = select i1 %cmp, double %a, double %b
ret double %cond
}
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