llvm-6502/test/Transforms/InstCombine/sext.ll
Stephen Lin 39f4e8d9cc 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

196 lines
4.5 KiB
LLVM

; 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"
declare i32 @llvm.ctpop.i32(i32)
declare i32 @llvm.ctlz.i32(i32, i1)
declare i32 @llvm.cttz.i32(i32, i1)
define i64 @test1(i32 %x) {
%t = call i32 @llvm.ctpop.i32(i32 %x)
%s = sext i32 %t to i64
ret i64 %s
; CHECK-LABEL: @test1(
; CHECK: zext i32 %t
}
define i64 @test2(i32 %x) {
%t = call i32 @llvm.ctlz.i32(i32 %x, i1 true)
%s = sext i32 %t to i64
ret i64 %s
; CHECK-LABEL: @test2(
; CHECK: zext i32 %t
}
define i64 @test3(i32 %x) {
%t = call i32 @llvm.cttz.i32(i32 %x, i1 true)
%s = sext i32 %t to i64
ret i64 %s
; CHECK-LABEL: @test3(
; CHECK: zext i32 %t
}
define i64 @test4(i32 %x) {
%t = udiv i32 %x, 3
%s = sext i32 %t to i64
ret i64 %s
; CHECK-LABEL: @test4(
; CHECK: zext i32 %t
}
define i64 @test5(i32 %x) {
%t = urem i32 %x, 30000
%s = sext i32 %t to i64
ret i64 %s
; CHECK-LABEL: @test5(
; CHECK: zext i32 %t
}
define i64 @test6(i32 %x) {
%u = lshr i32 %x, 3
%t = mul i32 %u, 3
%s = sext i32 %t to i64
ret i64 %s
; CHECK-LABEL: @test6(
; CHECK: zext i32 %t
}
define i64 @test7(i32 %x) {
%t = and i32 %x, 511
%u = sub i32 20000, %t
%s = sext i32 %u to i64
ret i64 %s
; CHECK-LABEL: @test7(
; CHECK: zext i32 %u to i64
}
define i32 @test8(i8 %a, i32 %f, i1 %p, i32* %z) {
%d = lshr i32 %f, 24
%e = select i1 %p, i32 %d, i32 0
%s = trunc i32 %e to i16
%n = sext i16 %s to i32
ret i32 %n
; CHECK-LABEL: @test8(
; CHECK: %d = lshr i32 %f, 24
; CHECK: %n = select i1 %p, i32 %d, i32 0
; CHECK: ret i32 %n
}
; rdar://6013816
define i16 @test9(i16 %t, i1 %cond) nounwind {
entry:
br i1 %cond, label %T, label %F
T:
%t2 = sext i16 %t to i32
br label %F
F:
%V = phi i32 [%t2, %T], [42, %entry]
%W = trunc i32 %V to i16
ret i16 %W
; CHECK-LABEL: @test9(
; CHECK: T:
; CHECK-NEXT: br label %F
; CHECK: F:
; CHECK-NEXT: phi i16
; CHECK-NEXT: ret i16
}
; PR2638
define i32 @test10(i32 %i) nounwind {
entry:
%tmp12 = trunc i32 %i to i8
%tmp16 = shl i8 %tmp12, 6
%a = ashr i8 %tmp16, 6
%b = sext i8 %a to i32
ret i32 %b
; CHECK-LABEL: @test10(
; CHECK: shl i32 %i, 30
; CHECK-NEXT: ashr exact i32
; CHECK-NEXT: ret i32
}
define void @test11(<2 x i16> %srcA, <2 x i16> %srcB, <2 x i16>* %dst) {
%cmp = icmp eq <2 x i16> %srcB, %srcA
%sext = sext <2 x i1> %cmp to <2 x i16>
%tmask = ashr <2 x i16> %sext, <i16 15, i16 15>
store <2 x i16> %tmask, <2 x i16>* %dst
ret void
; CHECK-LABEL: @test11(
; CHECK-NEXT: icmp eq
; CHECK-NEXT: sext <2 x i1>
; CHECK-NEXT: store <2 x i16>
; CHECK-NEXT: ret
}
define i64 @test12(i32 %x) nounwind {
%shr = lshr i32 %x, 1
%sub = sub nsw i32 0, %shr
%conv = sext i32 %sub to i64
ret i64 %conv
; CHECK-LABEL: @test12(
; CHECK: sext
; CHECK: ret
}
define i32 @test13(i32 %x) nounwind {
%and = and i32 %x, 8
%cmp = icmp eq i32 %and, 0
%ext = sext i1 %cmp to i32
ret i32 %ext
; CHECK-LABEL: @test13(
; CHECK-NEXT: %and = lshr i32 %x, 3
; CHECK-NEXT: %1 = and i32 %and, 1
; CHECK-NEXT: %sext = add i32 %1, -1
; CHECK-NEXT: ret i32 %sext
}
define i32 @test14(i16 %x) nounwind {
%and = and i16 %x, 16
%cmp = icmp ne i16 %and, 16
%ext = sext i1 %cmp to i32
ret i32 %ext
; CHECK-LABEL: @test14(
; CHECK-NEXT: %and = lshr i16 %x, 4
; CHECK-NEXT: %1 = and i16 %and, 1
; CHECK-NEXT: %sext = add i16 %1, -1
; CHECK-NEXT: %ext = sext i16 %sext to i32
; CHECK-NEXT: ret i32 %ext
}
define i32 @test15(i32 %x) nounwind {
%and = and i32 %x, 16
%cmp = icmp ne i32 %and, 0
%ext = sext i1 %cmp to i32
ret i32 %ext
; CHECK-LABEL: @test15(
; CHECK-NEXT: %1 = shl i32 %x, 27
; CHECK-NEXT: %sext = ashr i32 %1, 31
; CHECK-NEXT: ret i32 %sext
}
define i32 @test16(i16 %x) nounwind {
%and = and i16 %x, 8
%cmp = icmp eq i16 %and, 8
%ext = sext i1 %cmp to i32
ret i32 %ext
; CHECK-LABEL: @test16(
; CHECK-NEXT: %1 = shl i16 %x, 12
; CHECK-NEXT: %sext = ashr i16 %1, 15
; CHECK-NEXT: %ext = sext i16 %sext to i32
; CHECK-NEXT: ret i32 %ext
}
define i32 @test17(i1 %x) nounwind {
%c1 = sext i1 %x to i32
%c2 = sub i32 0, %c1
ret i32 %c2
; CHECK-LABEL: @test17(
; CHECK-NEXT: [[TEST17:%.*]] = zext i1 %x to i32
; CHECK-NEXT: ret i32 [[TEST17]]
}