Temporarily Revert "Add basic loop fusion pass."

As it's causing some bot failures (and per request from kbarton).

This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda.

llvm-svn: 358546

3 files changed, 0 insertions, 300 deletions

diff --git a/llvm/test/Transforms/Float2Int/basic.ll b/llvm/test/Transforms/Float2Int/basic.ll
deleted file mode 100644
index 573714dbfb2..00000000000
--- a/llvm/test/Transforms/Float2Int/basic.ll
+++ /dev/null
@@ -1,267 +0,0 @@
-; RUN: opt < %s -float2int -S | FileCheck %s
-; RUN: opt < %s -passes='float2int' -S | FileCheck %s
-
-;
-; Positive tests
-;
-
-; CHECK-LABEL: @simple1
-; CHECK:  %1 = zext i8 %a to i32
-; CHECK:  %2 = add i32 %1, 1
-; CHECK:  %3 = trunc i32 %2 to i16
-; CHECK:  ret i16 %3
-define i16 @simple1(i8 %a) {
-  %1 = uitofp i8 %a to float
-  %2 = fadd float %1, 1.0
-  %3 = fptoui float %2 to i16
-  ret i16 %3
-}
-
-; CHECK-LABEL: @simple2
-; CHECK:  %1 = zext i8 %a to i32
-; CHECK:  %2 = sub i32 %1, 1
-; CHECK:  %3 = trunc i32 %2 to i8
-; CHECK:  ret i8 %3
-define i8 @simple2(i8 %a) {
-  %1 = uitofp i8 %a to float
-  %2 = fsub float %1, 1.0
-  %3 = fptoui float %2 to i8
-  ret i8 %3
-}
-
-; CHECK-LABEL: @simple3
-; CHECK:  %1 = zext i8 %a to i32
-; CHECK:  %2 = sub i32 %1, 1
-; CHECK:  ret i32 %2
-define i32 @simple3(i8 %a) {
-  %1 = uitofp i8 %a to float
-  %2 = fsub float %1, 1.0
-  %3 = fptoui float %2 to i32
-  ret i32 %3
-}
-
-; CHECK-LABEL: @cmp
-; CHECK:  %1 = zext i8 %a to i32
-; CHECK:  %2 = zext i8 %b to i32
-; CHECK:  %3 = icmp slt i32 %1, %2
-; CHECK:  ret i1 %3
-define i1 @cmp(i8 %a, i8 %b) {
-  %1 = uitofp i8 %a to float
-  %2 = uitofp i8 %b to float
-  %3 = fcmp ult float %1, %2
-  ret i1 %3
-}
-
-; CHECK-LABEL: @simple4
-; CHECK:  %1 = zext i32 %a to i64
-; CHECK:  %2 = add i64 %1, 1
-; CHECK:  %3 = trunc i64 %2 to i32
-; CHECK:  ret i32 %3
-define i32 @simple4(i32 %a) {
-  %1 = uitofp i32 %a to double
-  %2 = fadd double %1, 1.0
-  %3 = fptoui double %2 to i32
-  ret i32 %3
-}
-
-; CHECK-LABEL: @simple5
-; CHECK:  %1 = zext i8 %a to i32
-; CHECK:  %2 = zext i8 %b to i32
-; CHECK:  %3 = add i32 %1, 1
-; CHECK:  %4 = mul i32 %3, %2
-; CHECK:  ret i32 %4
-define i32 @simple5(i8 %a, i8 %b) {
-  %1 = uitofp i8 %a to float
-  %2 = uitofp i8 %b to float
-  %3 = fadd float %1, 1.0
-  %4 = fmul float %3, %2
-  %5 = fptoui float %4 to i32
-  ret i32 %5
-}
-
-; The two chains don't interact - failure of one shouldn't
-; cause failure of the other.
-
-; CHECK-LABEL: @multi1
-; CHECK:  %1 = zext i8 %a to i32
-; CHECK:  %2 = zext i8 %b to i32
-; CHECK:  %fc = uitofp i8 %c to float
-; CHECK:  %x1 = add i32 %1, %2
-; CHECK:  %z = fadd float %fc, %d
-; CHECK:  %w = fptoui float %z to i32
-; CHECK:  %r = add i32 %x1, %w
-; CHECK:  ret i32 %r
-define i32 @multi1(i8 %a, i8 %b, i8 %c, float %d) {
-  %fa = uitofp i8 %a to float
-  %fb = uitofp i8 %b to float
-  %fc = uitofp i8 %c to float
-  %x = fadd float %fa, %fb
-  %y = fptoui float %x to i32
-  %z = fadd float %fc, %d
-  %w = fptoui float %z to i32
-  %r = add i32 %y, %w
-  ret i32 %r
-}
-
-; CHECK-LABEL: @simple_negzero
-; CHECK:  %1 = zext i8 %a to i32
-; CHECK:  %2 = add i32 %1, 0
-; CHECK:  %3 = trunc i32 %2 to i16
-; CHECK:  ret i16 %3
-define i16 @simple_negzero(i8 %a) {
-  %1 = uitofp i8 %a to float
-  %2 = fadd fast float %1, -0.0
-  %3 = fptoui float %2 to i16
-  ret i16 %3
-}
-
-; CHECK-LABEL: @simple_negative
-; CHECK: %1 = sext i8 %call to i32
-; CHECK: %mul1 = mul i32 %1, -3
-; CHECK: %2 = trunc i32 %mul1 to i8
-; CHECK: %conv3 = sext i8 %2 to i32
-; CHECK: ret i32 %conv3
-define i32 @simple_negative(i8 %call) {
-  %conv1 = sitofp i8 %call to float
-  %mul = fmul float %conv1, -3.000000e+00
-  %conv2 = fptosi float %mul to i8
-  %conv3 = sext i8 %conv2 to i32
-  ret i32 %conv3
-}
-
-;
-; Negative tests
-;
-
-; CHECK-LABEL: @neg_multi1
-; CHECK:  %fa = uitofp i8 %a to float
-; CHECK:  %fc = uitofp i8 %c to float
-; CHECK:  %x = fadd float %fa, %fc
-; CHECK:  %y = fptoui float %x to i32
-; CHECK:  %z = fadd float %fc, %d
-; CHECK:  %w = fptoui float %z to i32
-; CHECK:  %r = add i32 %y, %w
-; CHECK:  ret i32 %r
-; The two chains intersect, which means because one fails, no
-; transform can occur.
-define i32 @neg_multi1(i8 %a, i8 %b, i8 %c, float %d) {
-  %fa = uitofp i8 %a to float
-  %fc = uitofp i8 %c to float
-  %x = fadd float %fa, %fc
-  %y = fptoui float %x to i32
-  %z = fadd float %fc, %d
-  %w = fptoui float %z to i32
-  %r = add i32 %y, %w
-  ret i32 %r
-}
-
-; CHECK-LABEL: @neg_muld
-; CHECK:  %fa = uitofp i32 %a to double
-; CHECK:  %fb = uitofp i32 %b to double
-; CHECK:  %mul = fmul double %fa, %fb
-; CHECK:  %r = fptoui double %mul to i64
-; CHECK:  ret i64 %r
-; The i32 * i32 = i64, which has 64 bits, which is greater than the 52 bits
-; that can be exactly represented in a double.
-define i64 @neg_muld(i32 %a, i32 %b) {
-  %fa = uitofp i32 %a to double
-  %fb = uitofp i32 %b to double
-  %mul = fmul double %fa, %fb
-  %r = fptoui double %mul to i64
-  ret i64 %r
-}
-
-; CHECK-LABEL: @neg_mulf
-; CHECK:  %fa = uitofp i16 %a to float
-; CHECK:  %fb = uitofp i16 %b to float
-; CHECK:  %mul = fmul float %fa, %fb
-; CHECK:  %r = fptoui float %mul to i32
-; CHECK:  ret i32 %r
-; The i16 * i16 = i32, which can't be represented in a float, but can in a
-; double. This should fail, as the written code uses floats, not doubles so
-; the original result may be inaccurate.
-define i32 @neg_mulf(i16 %a, i16 %b) {
-  %fa = uitofp i16 %a to float
-  %fb = uitofp i16 %b to float
-  %mul = fmul float %fa, %fb
-  %r = fptoui float %mul to i32
-  ret i32 %r
-}
-
-; CHECK-LABEL: @neg_cmp
-; CHECK:  %1 = uitofp i8 %a to float
-; CHECK:  %2 = uitofp i8 %b to float
-; CHECK:  %3 = fcmp false float %1, %2
-; CHECK:  ret i1 %3
-; "false" doesn't have an icmp equivalent.
-define i1 @neg_cmp(i8 %a, i8 %b) {
-  %1 = uitofp i8 %a to float
-  %2 = uitofp i8 %b to float
-  %3 = fcmp false float %1, %2
-  ret i1 %3
-}
-
-; CHECK-LABEL: @neg_div
-; CHECK:  %1 = uitofp i8 %a to float
-; CHECK:  %2 = fdiv float %1, 1.0
-; CHECK:  %3 = fptoui float %2 to i16
-; CHECK:  ret i16 %3
-; Division isn't a supported operator.
-define i16 @neg_div(i8 %a) {
-  %1 = uitofp i8 %a to float
-  %2 = fdiv float %1, 1.0
-  %3 = fptoui float %2 to i16
-  ret i16 %3
-}
-
-; CHECK-LABEL: @neg_remainder
-; CHECK:  %1 = uitofp i8 %a to float
-; CHECK:  %2 = fadd float %1, 1.2
-; CHECK:  %3 = fptoui float %2 to i16
-; CHECK:  ret i16 %3
-; 1.2 is not an integer.
-define i16 @neg_remainder(i8 %a) {
-  %1 = uitofp i8 %a to float
-  %2 = fadd float %1, 1.25
-  %3 = fptoui float %2 to i16
-  ret i16 %3
-}
-
-; CHECK-LABEL: @neg_toolarge
-; CHECK:  %1 = uitofp i80 %a to fp128
-; CHECK:  %2 = fadd fp128 %1, %1
-; CHECK:  %3 = fptoui fp128 %2 to i80
-; CHECK:  ret i80 %3
-; i80 > i64, which is the largest bitwidth handleable by default.
-define i80 @neg_toolarge(i80 %a) {
-  %1 = uitofp i80 %a to fp128
-  %2 = fadd fp128 %1, %1
-  %3 = fptoui fp128 %2 to i80
-  ret i80 %3
-}
-
-; CHECK-LABEL: @neg_calluser
-; CHECK: sitofp
-; CHECK: fcmp
-; The sequence %1..%3 cannot be converted because %4 uses %2.
-define i32 @neg_calluser(i32 %value) {
-  %1 = sitofp i32 %value to double
-  %2 = fadd double %1, 1.0
-  %3 = fcmp olt double %2, 0.000000e+00
-  %4 = tail call double @g(double %2)
-  %5 = fptosi double %4 to i32
-  %6 = zext i1 %3 to i32
-  %7 = add i32 %6, %5
-  ret i32 %7
-}
-declare double @g(double)
-
-; CHECK-LABEL: @neg_vector
-; CHECK:  %1 = uitofp <4 x i8> %a to <4 x float>
-; CHECK:  %2 = fptoui <4 x float> %1 to <4 x i16>
-; CHECK:  ret <4 x i16> %2
-define <4 x i16> @neg_vector(<4 x i8> %a) {
-  %1 = uitofp <4 x i8> %a to <4 x float>
-  %2 = fptoui <4 x float> %1 to <4 x i16>
-  ret <4 x i16> %2
-}
diff --git a/llvm/test/Transforms/Float2Int/float2int-optnone.ll b/llvm/test/Transforms/Float2Int/float2int-optnone.ll
deleted file mode 100644
index c1eeea7a82e..00000000000
--- a/llvm/test/Transforms/Float2Int/float2int-optnone.ll
+++ /dev/null
@@ -1,17 +0,0 @@
-; RUN: opt < %s -float2int -S | FileCheck %s
-;
-; Verify that pass float2int is not run on optnone functions.
-
-define i16 @simple1(i8 %a) #0 {
-; CHECK-LABEL: @simple1
-; CHECK:  %1 = uitofp i8 %a to float
-; CHECK-NEXT:  %2 = fadd float %1, 1.0
-; CHECK-NEXT:  %3 = fptoui float %2 to i16
-; CHECK-NEXT:  ret i16 %3
-  %1 = uitofp i8 %a to float
-  %2 = fadd float %1, 1.0
-  %3 = fptoui float %2 to i16
-  ret i16 %3
-}
-
-attributes #0 = { noinline optnone }
diff --git a/llvm/test/Transforms/Float2Int/toolarge.ll b/llvm/test/Transforms/Float2Int/toolarge.ll
deleted file mode 100644
index b5d77815768..00000000000
--- a/llvm/test/Transforms/Float2Int/toolarge.ll
+++ /dev/null
@@ -1,16 +0,0 @@
-; RUN: opt < %s -float2int -float2int-max-integer-bw=256 -S | FileCheck %s
-
-; CHECK-LABEL: @neg_toolarge
-; CHECK:  %1 = uitofp i80 %a to fp128
-; CHECK:  %2 = fadd fp128 %1, %1
-; CHECK:  %3 = fptoui fp128 %2 to i80
-; CHECK:  ret i80 %3
-; fp128 has a 112-bit mantissa, which can hold an i80. But we only support
-; up to i64, so it should fail (even though the max integer bitwidth is 256).
-define i80 @neg_toolarge(i80 %a) {
-  %1 = uitofp i80 %a to fp128
-  %2 = fadd fp128 %1, %1
-  %3 = fptoui fp128 %2 to i80
-  ret i80 %3
-}
-