mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-15 04:30:12 +00:00
503ec9826c
This reverts commit r222142. This is causing/exposing an execution-time regression in spec2006/gcc and coremark on AArch64/A57/Ofast. Conflicts: test/Transforms/Reassociate/optional-flags.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222398 91177308-0d34-0410-b5e6-96231b3b80d8
159 lines
4.2 KiB
LLVM
159 lines
4.2 KiB
LLVM
; RUN: opt -reassociate -gvn -S < %s | FileCheck %s
|
|
|
|
; (x + 0.1234 * y) * (x + -0.1234 * y) -> (x + 0.1234 * y) * (x - 0.1234 * y)
|
|
define double @test1(double %x, double %y) {
|
|
; CHECK-LABEL: @test1
|
|
; CHECK-NEXT: fmul double %y, 1.234000e-01
|
|
; CHECK-NEXT: fadd double %x, %mul
|
|
; CHECK-NEXT: fsub double %x, %mul
|
|
; CHECK-NEXT: fmul double %add{{.*}}, %add{{.*}}
|
|
; CHECK-NEXT: ret double %mul
|
|
|
|
%mul = fmul double 1.234000e-01, %y
|
|
%add = fadd double %mul, %x
|
|
%mul1 = fmul double -1.234000e-01, %y
|
|
%add2 = fadd double %mul1, %x
|
|
%mul3 = fmul double %add, %add2
|
|
ret double %mul3
|
|
}
|
|
|
|
; (x + -0.1234 * y) * (x + -0.1234 * y) -> (x - 0.1234 * y) * (x - 0.1234 * y)
|
|
define double @test2(double %x, double %y) {
|
|
; CHECK-LABEL: @test2
|
|
; CHECK-NEXT: fmul double %y, 1.234000e-01
|
|
; CHECK-NEXT: fsub double %x, %mul
|
|
; CHECK-NEXT: fmul double %add{{.*}}, %add{{.*}}
|
|
; CHECK-NEXT: ret double %mul
|
|
|
|
%mul = fmul double %y, -1.234000e-01
|
|
%add = fadd double %mul, %x
|
|
%mul1 = fmul double %y, -1.234000e-01
|
|
%add2 = fadd double %mul1, %x
|
|
%mul3 = fmul double %add, %add2
|
|
ret double %mul3
|
|
}
|
|
|
|
; (x + 0.1234 * y) * (x - -0.1234 * y) -> (x + 0.1234 * y) * (x + 0.1234 * y)
|
|
define double @test3(double %x, double %y) {
|
|
; CHECK-LABEL: @test3
|
|
; CHECK-NEXT: fmul double %y, 1.234000e-01
|
|
; CHECK-NEXT: fadd double %x, %mul
|
|
; CHECK-NEXT: fmul double %add{{.*}}, %add{{.*}}
|
|
; CHECK-NEXT: ret double
|
|
|
|
%mul = fmul double %y, 1.234000e-01
|
|
%add = fadd double %mul, %x
|
|
%mul1 = fmul double %y, -1.234000e-01
|
|
%add2 = fsub double %x, %mul1
|
|
%mul3 = fmul double %add, %add2
|
|
ret double %mul3
|
|
}
|
|
|
|
; Canonicalize (x - -1234 * y)
|
|
define i64 @test4(i64 %x, i64 %y) {
|
|
; CHECK-LABEL: @test4
|
|
; CHECK-NEXT: mul i64 %y, 1234
|
|
; CHECK-NEXT: add i64 %mul, %x
|
|
; CHECK-NEXT: ret i64 %sub
|
|
|
|
%mul = mul i64 %y, -1234
|
|
%sub = sub i64 %x, %mul
|
|
ret i64 %sub
|
|
}
|
|
|
|
; Canonicalize (x - -0.1234 * y)
|
|
define double @test5(double %x, double %y) {
|
|
; CHECK-LABEL: @test5
|
|
; CHECK-NEXT: fmul double %y, 1.234000e-01
|
|
; CHECK-NEXT: fadd double %x, %mul
|
|
; CHECK-NEXT: ret double
|
|
|
|
%mul = fmul double -1.234000e-01, %y
|
|
%sub = fsub double %x, %mul
|
|
ret double %sub
|
|
}
|
|
|
|
; Don't modify (-0.1234 * y - x)
|
|
define double @test6(double %x, double %y) {
|
|
; CHECK-LABEL: @test6
|
|
; CHECK-NEXT: fmul double %y, -1.234000e-01
|
|
; CHECK-NEXT: fsub double %mul, %x
|
|
; CHECK-NEXT: ret double %sub
|
|
|
|
%mul = fmul double -1.234000e-01, %y
|
|
%sub = fsub double %mul, %x
|
|
ret double %sub
|
|
}
|
|
|
|
; Canonicalize (-0.1234 * y + x) -> (x - 0.1234 * y)
|
|
define double @test7(double %x, double %y) {
|
|
; CHECK-LABEL: @test7
|
|
; CHECK-NEXT: fmul double %y, 1.234000e-01
|
|
; CHECK-NEXT: fsub double %x, %mul
|
|
; CHECK-NEXT: ret double %add
|
|
|
|
%mul = fmul double -1.234000e-01, %y
|
|
%add = fadd double %mul, %x
|
|
ret double %add
|
|
}
|
|
|
|
; Canonicalize (y * -0.1234 + x) -> (x - 0.1234 * y)
|
|
define double @test8(double %x, double %y) {
|
|
; CHECK-LABEL: @test8
|
|
; CHECK-NEXT: fmul double %y, 1.234000e-01
|
|
; CHECK-NEXT: fsub double %x, %mul
|
|
; CHECK-NEXT: ret double %add
|
|
|
|
%mul = fmul double %y, -1.234000e-01
|
|
%add = fadd double %mul, %x
|
|
ret double %add
|
|
}
|
|
|
|
; Canonicalize (x - -0.1234 / y)
|
|
define double @test9(double %x, double %y) {
|
|
; CHECK-LABEL: @test9
|
|
; CHECK-NEXT: fdiv double 1.234000e-01, %y
|
|
; CHECK-NEXT: fadd double %x, %div
|
|
; CHECK-NEXT: ret double
|
|
|
|
%div = fdiv double -1.234000e-01, %y
|
|
%sub = fsub double %x, %div
|
|
ret double %sub
|
|
}
|
|
|
|
; Don't modify (-0.1234 / y - x)
|
|
define double @test10(double %x, double %y) {
|
|
; CHECK-LABEL: @test10
|
|
; CHECK-NEXT: fdiv double -1.234000e-01, %y
|
|
; CHECK-NEXT: fsub double %div, %x
|
|
; CHECK-NEXT: ret double %sub
|
|
|
|
%div = fdiv double -1.234000e-01, %y
|
|
%sub = fsub double %div, %x
|
|
ret double %sub
|
|
}
|
|
|
|
; Canonicalize (-0.1234 / y + x) -> (x - 0.1234 / y)
|
|
define double @test11(double %x, double %y) {
|
|
; CHECK-LABEL: @test11
|
|
; CHECK-NEXT: fdiv double 1.234000e-01, %y
|
|
; CHECK-NEXT: fsub double %x, %div
|
|
; CHECK-NEXT: ret double %add
|
|
|
|
%div = fdiv double -1.234000e-01, %y
|
|
%add = fadd double %div, %x
|
|
ret double %add
|
|
}
|
|
|
|
; Canonicalize (y / -0.1234 + x) -> (x - y / 0.1234)
|
|
define double @test12(double %x, double %y) {
|
|
; CHECK-LABEL: @test12
|
|
; CHECK-NEXT: fdiv double %y, 1.234000e-01
|
|
; CHECK-NEXT: fsub double %x, %div
|
|
; CHECK-NEXT: ret double %add
|
|
|
|
%div = fdiv double %y, -1.234000e-01
|
|
%add = fadd double %div, %x
|
|
ret double %add
|
|
}
|