From 1f4c755c2cb31f5b812734428a28bb11fd27639a Mon Sep 17 00:00:00 2001 From: Daniel Sanders Date: Thu, 12 Jun 2014 15:00:17 +0000 Subject: [mips][mips64r6] bc1[tf] are not available on MIPS32r6/MIPS64r6 Summary: Also tightened up the acceptable condition operand for these instructions on MIPS-I to MIPS-III. Support for $fcc[1-7] was added in MIPS-IV. Prior to that only $fcc0 is acceptable. We currently don't optimize (BEQZ (NOT $a), $target) and similar. It's probably best to do this in InstCombine. Depends on D4111 Reviewers: jkolek, zoran.jovanovic, vmedic Reviewed By: vmedic Differential Revision: http://reviews.llvm.org/D4112 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210787 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/CodeGen/Mips/analyzebranch.ll | 35 ++++++++++++-- test/CodeGen/Mips/fpbr.ll | 93 ++++++++++++++++++++++++++++++++------ 2 files changed, 110 insertions(+), 18 deletions(-) (limited to 'test/CodeGen') diff --git a/test/CodeGen/Mips/analyzebranch.ll b/test/CodeGen/Mips/analyzebranch.ll index 8ec5d93139..d9ad0f8ad8 100644 --- a/test/CodeGen/Mips/analyzebranch.ll +++ b/test/CodeGen/Mips/analyzebranch.ll @@ -1,9 +1,25 @@ -; RUN: llc -march=mips < %s | FileCheck %s +; RUN: llc -march=mips -mcpu=mips32 < %s | FileCheck %s -check-prefix=ALL -check-prefix=FCC +; RUN: llc -march=mips -mcpu=mips32r2 < %s | FileCheck %s -check-prefix=ALL -check-prefix=FCC +; RUN: llc -march=mips -mcpu=mips32r6 < %s | FileCheck %s -check-prefix=ALL -check-prefix=GPR -check-prefix=32-GPR +; RUN: llc -march=mips64 -mcpu=mips4 < %s | FileCheck %s -check-prefix=ALL -check-prefix=FCC +; RUN: llc -march=mips64 -mcpu=mips64 < %s | FileCheck %s -check-prefix=ALL -check-prefix=FCC +; RUN: llc -march=mips64 -mcpu=mips64r2 < %s | FileCheck %s -check-prefix=ALL -check-prefix=FCC +; RUN: llc -march=mips64 -mcpu=mips64r6 < %s | FileCheck %s -check-prefix=ALL -check-prefix=GPR -check-prefix=64-GPR define double @foo(double %a, double %b) nounwind readnone { entry: -; CHECK: bc1f $BB -; CHECK: nop +; ALL-LABEL: foo: + +; FCC: bc1f $BB +; FCC: nop + +; 32-GPR: mtc1 $zero, $[[Z:f[0-9]]] +; 32-GPR: mthc1 $zero, $[[Z:f[0-9]]] +; 64-GPR: dmtc1 $zero, $[[Z:f[0-9]]] +; GPR: cmp.olt.d $[[FGRCC:f[0-9]+]], $[[Z]], $f12 +; GPR: mfc1 $[[GPRCC:[0-9]+]], $[[FGRCC]] +; GPR-NOT: not $[[GPRCC]], $[[GPRCC]] +; GPR: bnez $[[GPRCC]], $BB %cmp = fcmp ogt double %a, 0.000000e+00 br i1 %cmp, label %if.end6, label %if.else @@ -25,8 +41,17 @@ return: ; preds = %if.else, %if.end6 define void @f1(float %f) nounwind { entry: -; CHECK: bc1f $BB -; CHECK: nop +; ALL-LABEL: f1: + +; FCC: bc1f $BB +; FCC: nop + +; GPR: mtc1 $zero, $[[Z:f[0-9]]] +; GPR: cmp.eq.s $[[FGRCC:f[0-9]+]], $f12, $[[Z]] +; GPR: mfc1 $[[GPRCC:[0-9]+]], $[[FGRCC]] +; GPR-NOT: not $[[GPRCC]], $[[GPRCC]] +; GPR: beqz $[[GPRCC]], $BB + %cmp = fcmp une float %f, 0.000000e+00 br i1 %cmp, label %if.then, label %if.end diff --git a/test/CodeGen/Mips/fpbr.ll b/test/CodeGen/Mips/fpbr.ll index a136557cc4..311b83015a 100644 --- a/test/CodeGen/Mips/fpbr.ll +++ b/test/CodeGen/Mips/fpbr.ll @@ -1,9 +1,25 @@ -; RUN: llc < %s -march=mipsel | FileCheck %s +; RUN: llc < %s -march=mipsel -mcpu=mips32 | FileCheck %s -check-prefix=ALL -check-prefix=FCC -check-prefix=32-FCC +; RUN: llc < %s -march=mipsel -mcpu=mips32r2 | FileCheck %s -check-prefix=ALL -check-prefix=FCC -check-prefix=32-FCC +; RUN: llc < %s -march=mipsel -mcpu=mips32r6 | FileCheck %s -check-prefix=ALL -check-prefix=GPR -check-prefix=32-GPR +; RUN: llc < %s -march=mips64el -mcpu=mips64 | FileCheck %s -check-prefix=ALL -check-prefix=FCC -check-prefix=64-FCC +; RUN: llc < %s -march=mips64el -mcpu=mips64r2 | FileCheck %s -check-prefix=ALL -check-prefix=FCC -check-prefix=64-FCC +; RUN: llc < %s -march=mips64el -mcpu=mips64r6 | FileCheck %s -check-prefix=ALL -check-prefix=GPR -check-prefix=64-GPR define void @func0(float %f2, float %f3) nounwind { entry: -; CHECK: c.eq.s -; CHECK: bc1f +; ALL-LABEL: func0: + +; 32-FCC: c.eq.s $f12, $f14 +; 64-FCC: c.eq.s $f12, $f13 +; FCC: bc1f $BB0_2 + +; 32-GPR: cmp.eq.s $[[FGRCC:f[0-9]+]], $f12, $f14 +; 64-GPR: cmp.eq.s $[[FGRCC:f[0-9]+]], $f12, $f13 +; GPR: mfc1 $[[GPRCC:[0-9]+]], $[[FGRCC:f[0-9]+]] +; FIXME: We ought to be able to transform not+bnez -> beqz +; GPR: not $[[GPRCC]], $[[GPRCC]] +; GPR: bnez $[[GPRCC]], $BB0_2 + %cmp = fcmp oeq float %f2, %f3 br i1 %cmp, label %if.then, label %if.else @@ -25,8 +41,18 @@ declare void @g1(...) define void @func1(float %f2, float %f3) nounwind { entry: -; CHECK: c.olt.s -; CHECK: bc1f +; ALL-LABEL: func1: + +; 32-FCC: c.olt.s $f12, $f14 +; 64-FCC: c.olt.s $f12, $f13 +; FCC: bc1f $BB1_2 + +; 32-GPR: cmp.ule.s $[[FGRCC:f[0-9]+]], $f14, $f12 +; 64-GPR: cmp.ule.s $[[FGRCC:f[0-9]+]], $f13, $f12 +; GPR: mfc1 $[[GPRCC:[0-9]+]], $[[FGRCC:f[0-9]+]] +; GPR-NOT: not $[[GPRCC]], $[[GPRCC]] +; GPR: bnez $[[GPRCC]], $BB1_2 + %cmp = fcmp olt float %f2, %f3 br i1 %cmp, label %if.then, label %if.else @@ -44,8 +70,18 @@ if.end: ; preds = %if.else, %if.then define void @func2(float %f2, float %f3) nounwind { entry: -; CHECK: c.ole.s -; CHECK: bc1t +; ALL-LABEL: func2: + +; 32-FCC: c.ole.s $f12, $f14 +; 64-FCC: c.ole.s $f12, $f13 +; FCC: bc1t $BB2_2 + +; 32-GPR: cmp.ult.s $[[FGRCC:f[0-9]+]], $f14, $f12 +; 64-GPR: cmp.ult.s $[[FGRCC:f[0-9]+]], $f13, $f12 +; GPR: mfc1 $[[GPRCC:[0-9]+]], $[[FGRCC:f[0-9]+]] +; GPR-NOT: not $[[GPRCC]], $[[GPRCC]] +; GPR: beqz $[[GPRCC]], $BB2_2 + %cmp = fcmp ugt float %f2, %f3 br i1 %cmp, label %if.else, label %if.then @@ -63,8 +99,19 @@ if.end: ; preds = %if.else, %if.then define void @func3(double %f2, double %f3) nounwind { entry: -; CHECK: c.eq.d -; CHECK: bc1f +; ALL-LABEL: func3: + +; 32-FCC: c.eq.d $f12, $f14 +; 64-FCC: c.eq.d $f12, $f13 +; FCC: bc1f $BB3_2 + +; 32-GPR: cmp.eq.d $[[FGRCC:f[0-9]+]], $f12, $f14 +; 64-GPR: cmp.eq.d $[[FGRCC:f[0-9]+]], $f12, $f13 +; GPR: mfc1 $[[GPRCC:[0-9]+]], $[[FGRCC:f[0-9]+]] +; FIXME: We ought to be able to transform not+bnez -> beqz +; GPR: not $[[GPRCC]], $[[GPRCC]] +; GPR: bnez $[[GPRCC]], $BB3_2 + %cmp = fcmp oeq double %f2, %f3 br i1 %cmp, label %if.then, label %if.else @@ -82,8 +129,18 @@ if.end: ; preds = %if.else, %if.then define void @func4(double %f2, double %f3) nounwind { entry: -; CHECK: c.olt.d -; CHECK: bc1f +; ALL-LABEL: func4: + +; 32-FCC: c.olt.d $f12, $f14 +; 64-FCC: c.olt.d $f12, $f13 +; FCC: bc1f $BB4_2 + +; 32-GPR: cmp.ule.d $[[FGRCC:f[0-9]+]], $f14, $f12 +; 64-GPR: cmp.ule.d $[[FGRCC:f[0-9]+]], $f13, $f12 +; GPR: mfc1 $[[GPRCC:[0-9]+]], $[[FGRCC:f[0-9]+]] +; GPR-NOT: not $[[GPRCC]], $[[GPRCC]] +; GPR: bnez $[[GPRCC]], $BB4_2 + %cmp = fcmp olt double %f2, %f3 br i1 %cmp, label %if.then, label %if.else @@ -101,8 +158,18 @@ if.end: ; preds = %if.else, %if.then define void @func5(double %f2, double %f3) nounwind { entry: -; CHECK: c.ole.d -; CHECK: bc1t +; ALL-LABEL: func5: + +; 32-FCC: c.ole.d $f12, $f14 +; 64-FCC: c.ole.d $f12, $f13 +; FCC: bc1t $BB5_2 + +; 32-GPR: cmp.ult.d $[[FGRCC:f[0-9]+]], $f14, $f12 +; 64-GPR: cmp.ult.d $[[FGRCC:f[0-9]+]], $f13, $f12 +; GPR: mfc1 $[[GPRCC:[0-9]+]], $[[FGRCC:f[0-9]+]] +; GPR-NOT: not $[[GPRCC]], $[[GPRCC]] +; GPR: beqz $[[GPRCC]], $BB5_2 + %cmp = fcmp ugt double %f2, %f3 br i1 %cmp, label %if.else, label %if.then -- cgit v1.2.3