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llvm-6502/test/CodeGen/SystemZ/memcpy-02.ll
Stephen Lin 8b2b8a1835 Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally. 
This update was done with the following bash script:

  find test/CodeGen -name "*.ll" | \
  while read NAME; do
    echo "$NAME"
    if ! grep -q "^; *RUN: *llc.*debug" $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
      sed -i '' "s/;\(.*\)-LABEL-LABEL:/;\1-LABEL:/" $TEMP
      sed -i '' "s/;\(.*\)-NEXT-LABEL:/;\1-NEXT:/" $TEMP
      sed -i '' "s/;\(.*\)-NOT-LABEL:/;\1-NOT:/" $TEMP
      sed -i '' "s/;\(.*\)-DAG-LABEL:/;\1-DAG:/" $TEMP
      mv $TEMP $NAME
    fi
  done


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186280 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 06:24:09 +00:00

418 lines
9.6 KiB
LLVM
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; Test load/store pairs that act as memcpys.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
@g1 = global i8 1
@g2 = global i16 2
@g3 = global i32 3
@g4 = global i64 4
@g5 = external global fp128, align 16
; Test the simple i8 case.
define void @f1(i8 *%ptr1) {
; CHECK-LABEL: f1:
; CHECK: mvc 1(1,%r2), 0(%r2)
; CHECK: br %r14
%ptr2 = getelementptr i8 *%ptr1, i64 1
%val = load i8 *%ptr1
store i8 %val, i8 *%ptr2
ret void
}
; Test i8 cases where the value is zero-extended to 32 bits.
define void @f2(i8 *%ptr1) {
; CHECK-LABEL: f2:
; CHECK: mvc 1(1,%r2), 0(%r2)
; CHECK: br %r14
%ptr2 = getelementptr i8 *%ptr1, i64 1
%val = load i8 *%ptr1
%ext = zext i8 %val to i32
%trunc = trunc i32 %ext to i8
store i8 %trunc, i8 *%ptr2
ret void
}
; Test i8 cases where the value is zero-extended to 64 bits.
define void @f3(i8 *%ptr1) {
; CHECK-LABEL: f3:
; CHECK: mvc 1(1,%r2), 0(%r2)
; CHECK: br %r14
%ptr2 = getelementptr i8 *%ptr1, i64 1
%val = load i8 *%ptr1
%ext = zext i8 %val to i64
%trunc = trunc i64 %ext to i8
store i8 %trunc, i8 *%ptr2
ret void
}
; Test i8 cases where the value is sign-extended to 32 bits.
define void @f4(i8 *%ptr1) {
; CHECK-LABEL: f4:
; CHECK: mvc 1(1,%r2), 0(%r2)
; CHECK: br %r14
%ptr2 = getelementptr i8 *%ptr1, i64 1
%val = load i8 *%ptr1
%ext = sext i8 %val to i32
%trunc = trunc i32 %ext to i8
store i8 %trunc, i8 *%ptr2
ret void
}
; Test i8 cases where the value is sign-extended to 64 bits.
define void @f5(i8 *%ptr1) {
; CHECK-LABEL: f5:
; CHECK: mvc 1(1,%r2), 0(%r2)
; CHECK: br %r14
%ptr2 = getelementptr i8 *%ptr1, i64 1
%val = load i8 *%ptr1
%ext = sext i8 %val to i64
%trunc = trunc i64 %ext to i8
store i8 %trunc, i8 *%ptr2
ret void
}
; Test the simple i16 case.
define void @f6(i16 *%ptr1) {
; CHECK-LABEL: f6:
; CHECK: mvc 2(2,%r2), 0(%r2)
; CHECK: br %r14
%ptr2 = getelementptr i16 *%ptr1, i64 1
%val = load i16 *%ptr1
store i16 %val, i16 *%ptr2
ret void
}
; Test i16 cases where the value is zero-extended to 32 bits.
define void @f7(i16 *%ptr1) {
; CHECK-LABEL: f7:
; CHECK: mvc 2(2,%r2), 0(%r2)
; CHECK: br %r14
%ptr2 = getelementptr i16 *%ptr1, i64 1
%val = load i16 *%ptr1
%ext = zext i16 %val to i32
%trunc = trunc i32 %ext to i16
store i16 %trunc, i16 *%ptr2
ret void
}
; Test i16 cases where the value is zero-extended to 64 bits.
define void @f8(i16 *%ptr1) {
; CHECK-LABEL: f8:
; CHECK: mvc 2(2,%r2), 0(%r2)
; CHECK: br %r14
%ptr2 = getelementptr i16 *%ptr1, i64 1
%val = load i16 *%ptr1
%ext = zext i16 %val to i64
%trunc = trunc i64 %ext to i16
store i16 %trunc, i16 *%ptr2
ret void
}
; Test i16 cases where the value is sign-extended to 32 bits.
define void @f9(i16 *%ptr1) {
; CHECK-LABEL: f9:
; CHECK: mvc 2(2,%r2), 0(%r2)
; CHECK: br %r14
%ptr2 = getelementptr i16 *%ptr1, i64 1
%val = load i16 *%ptr1
%ext = sext i16 %val to i32
%trunc = trunc i32 %ext to i16
store i16 %trunc, i16 *%ptr2
ret void
}
; Test i16 cases where the value is sign-extended to 64 bits.
define void @f10(i16 *%ptr1) {
; CHECK-LABEL: f10:
; CHECK: mvc 2(2,%r2), 0(%r2)
; CHECK: br %r14
%ptr2 = getelementptr i16 *%ptr1, i64 1
%val = load i16 *%ptr1
%ext = sext i16 %val to i64
%trunc = trunc i64 %ext to i16
store i16 %trunc, i16 *%ptr2
ret void
}
; Test the simple i32 case.
define void @f11(i32 *%ptr1) {
; CHECK-LABEL: f11:
; CHECK: mvc 4(4,%r2), 0(%r2)
; CHECK: br %r14
%ptr2 = getelementptr i32 *%ptr1, i64 1
%val = load i32 *%ptr1
store i32 %val, i32 *%ptr2
ret void
}
; Test i32 cases where the value is zero-extended to 64 bits.
define void @f12(i32 *%ptr1) {
; CHECK-LABEL: f12:
; CHECK: mvc 4(4,%r2), 0(%r2)
; CHECK: br %r14
%ptr2 = getelementptr i32 *%ptr1, i64 1
%val = load i32 *%ptr1
%ext = zext i32 %val to i64
%trunc = trunc i64 %ext to i32
store i32 %trunc, i32 *%ptr2
ret void
}
; Test i32 cases where the value is sign-extended to 64 bits.
define void @f13(i32 *%ptr1) {
; CHECK-LABEL: f13:
; CHECK: mvc 4(4,%r2), 0(%r2)
; CHECK: br %r14
%ptr2 = getelementptr i32 *%ptr1, i64 1
%val = load i32 *%ptr1
%ext = sext i32 %val to i64
%trunc = trunc i64 %ext to i32
store i32 %trunc, i32 *%ptr2
ret void
}
; Test the i64 case.
define void @f14(i64 *%ptr1) {
; CHECK-LABEL: f14:
; CHECK: mvc 8(8,%r2), 0(%r2)
; CHECK: br %r14
%ptr2 = getelementptr i64 *%ptr1, i64 1
%val = load i64 *%ptr1
store i64 %val, i64 *%ptr2
ret void
}
; Test the f32 case.
define void @f15(float *%ptr1) {
; CHECK-LABEL: f15:
; CHECK: mvc 4(4,%r2), 0(%r2)
; CHECK: br %r14
%ptr2 = getelementptr float *%ptr1, i64 1
%val = load float *%ptr1
store float %val, float *%ptr2
ret void
}
; Test the f64 case.
define void @f16(double *%ptr1) {
; CHECK-LABEL: f16:
; CHECK: mvc 8(8,%r2), 0(%r2)
; CHECK: br %r14
%ptr2 = getelementptr double *%ptr1, i64 1
%val = load double *%ptr1
store double %val, double *%ptr2
ret void
}
; Test the f128 case.
define void @f17(fp128 *%ptr1) {
; CHECK-LABEL: f17:
; CHECK: mvc 16(16,%r2), 0(%r2)
; CHECK: br %r14
%ptr2 = getelementptr fp128 *%ptr1, i64 1
%val = load fp128 *%ptr1
store fp128 %val, fp128 *%ptr2
ret void
}
; Make sure that we don't use MVC if the load is volatile.
define void @f18(i64 *%ptr1) {
; CHECK-LABEL: f18:
; CHECK-NOT: mvc
; CHECK: br %r14
%ptr2 = getelementptr i64 *%ptr1, i64 1
%val = load volatile i64 *%ptr1
store i64 %val, i64 *%ptr2
ret void
}
; ...likewise the store.
define void @f19(i64 *%ptr1) {
; CHECK-LABEL: f19:
; CHECK-NOT: mvc
; CHECK: br %r14
%ptr2 = getelementptr i64 *%ptr1, i64 1
%val = load i64 *%ptr1
store volatile i64 %val, i64 *%ptr2
ret void
}
; Test that MVC is used for aligned loads and stores, even if there is
; no way of telling whether they alias.
define void @f20(i64 *%ptr1, i64 *%ptr2) {
; CHECK-LABEL: f20:
; CHECK: mvc 0(8,%r3), 0(%r2)
; CHECK: br %r14
%val = load i64 *%ptr1
store i64 %val, i64 *%ptr2
ret void
}
; ...but if the loads aren't aligned, we can't be sure.
define void @f21(i64 *%ptr1, i64 *%ptr2) {
; CHECK-LABEL: f21:
; CHECK-NOT: mvc
; CHECK: br %r14
%val = load i64 *%ptr1, align 2
store i64 %val, i64 *%ptr2, align 2
ret void
}
; Test a case where there is definite overlap.
define void @f22(i64 %base) {
; CHECK-LABEL: f22:
; CHECK-NOT: mvc
; CHECK: br %r14
%add = add i64 %base, 1
%ptr1 = inttoptr i64 %base to i64 *
%ptr2 = inttoptr i64 %add to i64 *
%val = load i64 *%ptr1, align 1
store i64 %val, i64 *%ptr2, align 1
ret void
}
; Test that we can use MVC for global addresses for i8.
define void @f23(i8 *%ptr) {
; CHECK-LABEL: f23:
; CHECK: larl [[REG:%r[0-5]]], g1
; CHECK: mvc 0(1,%r2), 0([[REG]])
; CHECK: br %r14
%val = load i8 *@g1
store i8 %val, i8 *%ptr
ret void
}
; ...and again with the global on the store.
define void @f24(i8 *%ptr) {
; CHECK-LABEL: f24:
; CHECK: larl [[REG:%r[0-5]]], g1
; CHECK: mvc 0(1,[[REG]]), 0(%r2)
; CHECK: br %r14
%val = load i8 *%ptr
store i8 %val, i8 *@g1
ret void
}
; Test that we use LHRL for i16.
define void @f25(i16 *%ptr) {
; CHECK-LABEL: f25:
; CHECK: lhrl [[REG:%r[0-5]]], g2
; CHECK: sth [[REG]], 0(%r2)
; CHECK: br %r14
%val = load i16 *@g2
store i16 %val, i16 *%ptr
ret void
}
; ...likewise STHRL.
define void @f26(i16 *%ptr) {
; CHECK-LABEL: f26:
; CHECK: lh [[REG:%r[0-5]]], 0(%r2)
; CHECK: sthrl [[REG]], g2
; CHECK: br %r14
%val = load i16 *%ptr
store i16 %val, i16 *@g2
ret void
}
; Test that we use LRL for i32.
define void @f27(i32 *%ptr) {
; CHECK-LABEL: f27:
; CHECK: lrl [[REG:%r[0-5]]], g3
; CHECK: st [[REG]], 0(%r2)
; CHECK: br %r14
%val = load i32 *@g3
store i32 %val, i32 *%ptr
ret void
}
; ...likewise STRL.
define void @f28(i32 *%ptr) {
; CHECK-LABEL: f28:
; CHECK: l [[REG:%r[0-5]]], 0(%r2)
; CHECK: strl [[REG]], g3
; CHECK: br %r14
%val = load i32 *%ptr
store i32 %val, i32 *@g3
ret void
}
; Test that we use LGRL for i64.
define void @f29(i64 *%ptr) {
; CHECK-LABEL: f29:
; CHECK: lgrl [[REG:%r[0-5]]], g4
; CHECK: stg [[REG]], 0(%r2)
; CHECK: br %r14
%val = load i64 *@g4
store i64 %val, i64 *%ptr
ret void
}
; ...likewise STGRL.
define void @f30(i64 *%ptr) {
; CHECK-LABEL: f30:
; CHECK: lg [[REG:%r[0-5]]], 0(%r2)
; CHECK: stgrl [[REG]], g4
; CHECK: br %r14
%val = load i64 *%ptr
store i64 %val, i64 *@g4
ret void
}
; Test that we can use MVC for global addresses for fp128.
define void @f31(fp128 *%ptr) {
; CHECK-LABEL: f31:
; CHECK: larl [[REG:%r[0-5]]], g5
; CHECK: mvc 0(16,%r2), 0([[REG]])
; CHECK: br %r14
%val = load fp128 *@g5, align 16
store fp128 %val, fp128 *%ptr, align 16
ret void
}
; ...and again with the global on the store.
define void @f32(fp128 *%ptr) {
; CHECK-LABEL: f32:
; CHECK: larl [[REG:%r[0-5]]], g5
; CHECK: mvc 0(16,[[REG]]), 0(%r2)
; CHECK: br %r14
%val = load fp128 *%ptr, align 16
store fp128 %val, fp128 *@g5, align 16
ret void
}
; Test a case where offset disambiguation is enough.
define void @f33(i64 *%ptr1) {
; CHECK-LABEL: f33:
; CHECK: mvc 8(8,%r2), 0(%r2)
; CHECK: br %r14
%ptr2 = getelementptr i64 *%ptr1, i64 1
%val = load i64 *%ptr1, align 1
store i64 %val, i64 *%ptr2, align 1
ret void
}
; Test f21 in cases where TBAA tells us there is no alias.
define void @f34(i64 *%ptr1, i64 *%ptr2) {
; CHECK-LABEL: f34:
; CHECK: mvc 0(8,%r3), 0(%r2)
; CHECK: br %r14
%val = load i64 *%ptr1, align 2, !tbaa !1
store i64 %val, i64 *%ptr2, align 2, !tbaa !2
ret void
}
; Test f21 in cases where TBAA is present but doesn't help.
define void @f35(i64 *%ptr1, i64 *%ptr2) {
; CHECK-LABEL: f35:
; CHECK-NOT: mvc
; CHECK: br %r14
%val = load i64 *%ptr1, align 2, !tbaa !1
store i64 %val, i64 *%ptr2, align 2, !tbaa !1
ret void
}
!0 = metadata !{ metadata !"root" }
!1 = metadata !{ metadata !"set1", metadata !0 }
!2 = metadata !{ metadata !"set2", metadata !0 }
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