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llvm/test/Transforms/InstCombine/cos-2.ll

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instcombine: Migrate math library call simplifications This patch migrates the math library call simplifications from the simplify-libcalls pass into the instcombine library call simplifier. I have typically migrated just one simplifier at a time, but the math simplifiers are interdependent because: 1. CosOpt, PowOpt, and Exp2Opt all depend on UnaryDoubleFPOpt. 2. CosOpt, PowOpt, Exp2Opt, and UnaryDoubleFPOpt all depend on the option -enable-double-float-shrink. These two factors made migrating each of these simplifiers individually more of a pain than it would be worth. So, I migrated them all together. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167815 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13 04:16:17 +00:00
; RUN: opt < %s -instcombine -S | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
declare float @cos(double)
[LibCallSimplifier] don't get fooled by a fake sqrt() The test case will crash without this patch because the subsequent call to hasUnsafeAlgebra() assumes that the call instruction is an FPMathOperator (ie, returns an FP type). This part of the function signature check was omitted for the sqrt() case, but seems to be in place for all other transforms. Before: http://reviews.llvm.org/rL257400 ...we would have needlessly continued execution in optimizeSqrt(), but the bug was harmless because we'd eventually fail some other check and return without damage. This should fix: https://llvm.org/bugs/show_bug.cgi?id=26211 Differential Revision: http://reviews.llvm.org/D16198 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258325 91177308-0d34-0410-b5e6-96231b3b80d8
2016-01-20 17:41:14 +00:00
declare signext i8 @sqrt(...)
instcombine: Migrate math library call simplifications This patch migrates the math library call simplifications from the simplify-libcalls pass into the instcombine library call simplifier. I have typically migrated just one simplifier at a time, but the math simplifiers are interdependent because: 1. CosOpt, PowOpt, and Exp2Opt all depend on UnaryDoubleFPOpt. 2. CosOpt, PowOpt, Exp2Opt, and UnaryDoubleFPOpt all depend on the option -enable-double-float-shrink. These two factors made migrating each of these simplifiers individually more of a pain than it would be worth. So, I migrated them all together. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167815 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13 04:16:17 +00:00
[LibCallSimplifier] don't get fooled by a fake sqrt() The test case will crash without this patch because the subsequent call to hasUnsafeAlgebra() assumes that the call instruction is an FPMathOperator (ie, returns an FP type). This part of the function signature check was omitted for the sqrt() case, but seems to be in place for all other transforms. Before: http://reviews.llvm.org/rL257400 ...we would have needlessly continued execution in optimizeSqrt(), but the bug was harmless because we'd eventually fail some other check and return without damage. This should fix: https://llvm.org/bugs/show_bug.cgi?id=26211 Differential Revision: http://reviews.llvm.org/D16198 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258325 91177308-0d34-0410-b5e6-96231b3b80d8
2016-01-20 17:41:14 +00:00
; Check that functions with the wrong prototype aren't simplified.
instcombine: Migrate math library call simplifications This patch migrates the math library call simplifications from the simplify-libcalls pass into the instcombine library call simplifier. I have typically migrated just one simplifier at a time, but the math simplifiers are interdependent because: 1. CosOpt, PowOpt, and Exp2Opt all depend on UnaryDoubleFPOpt. 2. CosOpt, PowOpt, Exp2Opt, and UnaryDoubleFPOpt all depend on the option -enable-double-float-shrink. These two factors made migrating each of these simplifiers individually more of a pain than it would be worth. So, I migrated them all together. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167815 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13 04:16:17 +00:00
define float @test_no_simplify1(double %d) {
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP done mv $TEMP $NAME fi done git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186268 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 01:42:54 +00:00
; CHECK-LABEL: @test_no_simplify1(
instcombine: Migrate math library call simplifications This patch migrates the math library call simplifications from the simplify-libcalls pass into the instcombine library call simplifier. I have typically migrated just one simplifier at a time, but the math simplifiers are interdependent because: 1. CosOpt, PowOpt, and Exp2Opt all depend on UnaryDoubleFPOpt. 2. CosOpt, PowOpt, Exp2Opt, and UnaryDoubleFPOpt all depend on the option -enable-double-float-shrink. These two factors made migrating each of these simplifiers individually more of a pain than it would be worth. So, I migrated them all together. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167815 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13 04:16:17 +00:00
%neg = fsub double -0.000000e+00, %d
%cos = call float @cos(double %neg)
; CHECK: call float @cos(double %neg)
ret float %cos
}
[LibCallSimplifier] don't get fooled by a fake sqrt() The test case will crash without this patch because the subsequent call to hasUnsafeAlgebra() assumes that the call instruction is an FPMathOperator (ie, returns an FP type). This part of the function signature check was omitted for the sqrt() case, but seems to be in place for all other transforms. Before: http://reviews.llvm.org/rL257400 ...we would have needlessly continued execution in optimizeSqrt(), but the bug was harmless because we'd eventually fail some other check and return without damage. This should fix: https://llvm.org/bugs/show_bug.cgi?id=26211 Differential Revision: http://reviews.llvm.org/D16198 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258325 91177308-0d34-0410-b5e6-96231b3b80d8
2016-01-20 17:41:14 +00:00
define i8 @bogus_sqrt() {
%fake_sqrt = call signext i8 (...) @sqrt()
ret i8 %fake_sqrt
; CHECK-LABEL: bogus_sqrt(
; CHECK-NEXT: %fake_sqrt = call signext i8 (...) @sqrt()
; CHECK-NEXT: ret i8 %fake_sqrt
}
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