llvm-mirror/test/CodeGen/AArch64/arm64-narrow-st-merge.ll
Nirav Dave d42b05387d [ARM][AArch64][DAG] Reenable post-legalize store merge
Reenable post-legalize stores with constant merging computation and
corresponding test case.

 * Properly truncate store merge constants
 * Disable merging of truncated stores floating points
 * Ensure merges of constant stores into a single vector are
   constructed from legal elements.

Reviewers: eastig, efriedma

Reviewed By: eastig

Subscribers: spatel, rengolin, aemerson, javed.absar, kristof.beyls, hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D40701

llvm-svn: 319899
2017-12-06 15:30:13 +00:00

210 lines
6.4 KiB
LLVM

; RUN: llc < %s -mtriple aarch64--none-eabi -verify-machineinstrs | FileCheck %s
; RUN: llc < %s -mtriple aarch64--none-eabi -mattr=+strict-align -verify-machineinstrs | FileCheck %s -check-prefix=CHECK-STRICT
; CHECK-LABEL: Strh_zero
; CHECK: str wzr
; CHECK-STRICT-LABEL: Strh_zero
; CHECK-STRICT: strh wzr
; CHECK-STRICT: strh wzr
define void @Strh_zero(i16* nocapture %P, i32 %n) {
entry:
%idxprom = sext i32 %n to i64
%arrayidx = getelementptr inbounds i16, i16* %P, i64 %idxprom
store i16 0, i16* %arrayidx
%add = add nsw i32 %n, 1
%idxprom1 = sext i32 %add to i64
%arrayidx2 = getelementptr inbounds i16, i16* %P, i64 %idxprom1
store i16 0, i16* %arrayidx2
ret void
}
; CHECK-LABEL: Strh_zero_4
; CHECK: str xzr
; CHECK-STRICT-LABEL: Strh_zero_4
; CHECK-STRICT: strh wzr
; CHECK-STRICT: strh wzr
; CHECK-STRICT: strh wzr
; CHECK-STRICT: strh wzr
define void @Strh_zero_4(i16* nocapture %P, i32 %n) {
entry:
%idxprom = sext i32 %n to i64
%arrayidx = getelementptr inbounds i16, i16* %P, i64 %idxprom
store i16 0, i16* %arrayidx
%add = add nsw i32 %n, 1
%idxprom1 = sext i32 %add to i64
%arrayidx2 = getelementptr inbounds i16, i16* %P, i64 %idxprom1
store i16 0, i16* %arrayidx2
%add3 = add nsw i32 %n, 2
%idxprom4 = sext i32 %add3 to i64
%arrayidx5 = getelementptr inbounds i16, i16* %P, i64 %idxprom4
store i16 0, i16* %arrayidx5
%add6 = add nsw i32 %n, 3
%idxprom7 = sext i32 %add6 to i64
%arrayidx8 = getelementptr inbounds i16, i16* %P, i64 %idxprom7
store i16 0, i16* %arrayidx8
ret void
}
; CHECK-LABEL: Strw_zero
; CHECK: str xzr
; CHECK-STRICT-LABEL: Strw_zero
; CHECK-STRICT: stp wzr, wzr
define void @Strw_zero(i32* nocapture %P, i32 %n) {
entry:
%idxprom = sext i32 %n to i64
%arrayidx = getelementptr inbounds i32, i32* %P, i64 %idxprom
store i32 0, i32* %arrayidx
%add = add nsw i32 %n, 1
%idxprom1 = sext i32 %add to i64
%arrayidx2 = getelementptr inbounds i32, i32* %P, i64 %idxprom1
store i32 0, i32* %arrayidx2
ret void
}
; CHECK-LABEL: Strw_zero_nonzero
; CHECK: stp wzr, w1
define void @Strw_zero_nonzero(i32* nocapture %P, i32 %n) {
entry:
%idxprom = sext i32 %n to i64
%arrayidx = getelementptr inbounds i32, i32* %P, i64 %idxprom
store i32 0, i32* %arrayidx
%add = add nsw i32 %n, 1
%idxprom1 = sext i32 %add to i64
%arrayidx2 = getelementptr inbounds i32, i32* %P, i64 %idxprom1
store i32 %n, i32* %arrayidx2
ret void
}
; CHECK-LABEL: Strw_zero_4
; CHECK: stp xzr, xzr
; CHECK-STRICT-LABEL: Strw_zero_4
; CHECK-STRICT: stp wzr, wzr
; CHECK-STRICT: stp wzr, wzr
define void @Strw_zero_4(i32* nocapture %P, i32 %n) {
entry:
%idxprom = sext i32 %n to i64
%arrayidx = getelementptr inbounds i32, i32* %P, i64 %idxprom
store i32 0, i32* %arrayidx
%add = add nsw i32 %n, 1
%idxprom1 = sext i32 %add to i64
%arrayidx2 = getelementptr inbounds i32, i32* %P, i64 %idxprom1
store i32 0, i32* %arrayidx2
%add3 = add nsw i32 %n, 2
%idxprom4 = sext i32 %add3 to i64
%arrayidx5 = getelementptr inbounds i32, i32* %P, i64 %idxprom4
store i32 0, i32* %arrayidx5
%add6 = add nsw i32 %n, 3
%idxprom7 = sext i32 %add6 to i64
%arrayidx8 = getelementptr inbounds i32, i32* %P, i64 %idxprom7
store i32 0, i32* %arrayidx8
ret void
}
; CHECK-LABEL: Sturb_zero
; CHECK: sturh wzr
; CHECK-STRICT-LABEL: Sturb_zero
; CHECK-STRICT: sturb wzr
; CHECK-STRICT: sturb wzr
define void @Sturb_zero(i8* nocapture %P, i32 %n) #0 {
entry:
%sub = add nsw i32 %n, -2
%idxprom = sext i32 %sub to i64
%arrayidx = getelementptr inbounds i8, i8* %P, i64 %idxprom
store i8 0, i8* %arrayidx
%sub2= add nsw i32 %n, -1
%idxprom1 = sext i32 %sub2 to i64
%arrayidx2 = getelementptr inbounds i8, i8* %P, i64 %idxprom1
store i8 0, i8* %arrayidx2
ret void
}
; CHECK-LABEL: Sturh_zero
; CHECK: stur wzr
; CHECK-STRICT-LABEL: Sturh_zero
; CHECK-STRICT: sturh wzr
; CHECK-STRICT: sturh wzr
define void @Sturh_zero(i16* nocapture %P, i32 %n) {
entry:
%sub = add nsw i32 %n, -2
%idxprom = sext i32 %sub to i64
%arrayidx = getelementptr inbounds i16, i16* %P, i64 %idxprom
store i16 0, i16* %arrayidx
%sub1 = add nsw i32 %n, -3
%idxprom2 = sext i32 %sub1 to i64
%arrayidx3 = getelementptr inbounds i16, i16* %P, i64 %idxprom2
store i16 0, i16* %arrayidx3
ret void
}
; CHECK-LABEL: Sturh_zero_4
; CHECK: stur xzr
; CHECK-STRICT-LABEL: Sturh_zero_4
; CHECK-STRICT: sturh wzr
; CHECK-STRICT: sturh wzr
; CHECK-STRICT: sturh wzr
; CHECK-STRICT: sturh wzr
define void @Sturh_zero_4(i16* nocapture %P, i32 %n) {
entry:
%sub = add nsw i32 %n, -3
%idxprom = sext i32 %sub to i64
%arrayidx = getelementptr inbounds i16, i16* %P, i64 %idxprom
store i16 0, i16* %arrayidx
%sub1 = add nsw i32 %n, -4
%idxprom2 = sext i32 %sub1 to i64
%arrayidx3 = getelementptr inbounds i16, i16* %P, i64 %idxprom2
store i16 0, i16* %arrayidx3
%sub4 = add nsw i32 %n, -2
%idxprom5 = sext i32 %sub4 to i64
%arrayidx6 = getelementptr inbounds i16, i16* %P, i64 %idxprom5
store i16 0, i16* %arrayidx6
%sub7 = add nsw i32 %n, -1
%idxprom8 = sext i32 %sub7 to i64
%arrayidx9 = getelementptr inbounds i16, i16* %P, i64 %idxprom8
store i16 0, i16* %arrayidx9
ret void
}
; CHECK-LABEL: Sturw_zero
; CHECK: stur xzr
; CHECK-STRICT-LABEL: Sturw_zero
; CHECK-STRICT: stp wzr, wzr
define void @Sturw_zero(i32* nocapture %P, i32 %n) {
entry:
%sub = add nsw i32 %n, -3
%idxprom = sext i32 %sub to i64
%arrayidx = getelementptr inbounds i32, i32* %P, i64 %idxprom
store i32 0, i32* %arrayidx
%sub1 = add nsw i32 %n, -4
%idxprom2 = sext i32 %sub1 to i64
%arrayidx3 = getelementptr inbounds i32, i32* %P, i64 %idxprom2
store i32 0, i32* %arrayidx3
ret void
}
; CHECK-LABEL: Sturw_zero_4
; CHECK: stp xzr, xzr
; CHECK-STRICT-LABEL: Sturw_zero_4
; CHECK-STRICT: stp wzr, wzr
; CHECK-STRICT: stp wzr, wzr
define void @Sturw_zero_4(i32* nocapture %P, i32 %n) {
entry:
%sub = add nsw i32 %n, -3
%idxprom = sext i32 %sub to i64
%arrayidx = getelementptr inbounds i32, i32* %P, i64 %idxprom
store i32 0, i32* %arrayidx
%sub1 = add nsw i32 %n, -4
%idxprom2 = sext i32 %sub1 to i64
%arrayidx3 = getelementptr inbounds i32, i32* %P, i64 %idxprom2
store i32 0, i32* %arrayidx3
%sub4 = add nsw i32 %n, -2
%idxprom5 = sext i32 %sub4 to i64
%arrayidx6 = getelementptr inbounds i32, i32* %P, i64 %idxprom5
store i32 0, i32* %arrayidx6
%sub7 = add nsw i32 %n, -1
%idxprom8 = sext i32 %sub7 to i64
%arrayidx9 = getelementptr inbounds i32, i32* %P, i64 %idxprom8
store i32 0, i32* %arrayidx9
ret void
}