Fix the previous accidental commit. Now shrinking common Thumb2 load / store instruct...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78659 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp b/lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
index 43348103b2c7eb37332b9e32552d5e3192af64b3..02ced4451f948e032ce48abb7c12b72800758d41 100644 (file)
--- a/lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
+++ b/lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
@@ -850,7 +850,7 @@ void ARMAsmPrinter::printT2AddrModeSoRegOperand(const MachineInstr *MI,
   O << "[" << TRI->getAsmName(MO1.getReg());
 
   assert(MO2.getReg() && "Invalid so_reg load / store address!");
-  O << ", +" << TRI->getAsmName(MO2.getReg());
+  O << ", " << TRI->getAsmName(MO2.getReg());
 
   unsigned ShAmt = MO3.getImm();
   if (ShAmt) {

diff --git a/lib/Target/ARM/Thumb2SizeReduction.cpp b/lib/Target/ARM/Thumb2SizeReduction.cpp
index 2812cd38ff329b4e6b420eeb5c2557bb1637f091..a9fb95a35eb8abac53a22971dedd43ca4edd7d8f 100644 (file)
--- a/lib/Target/ARM/Thumb2SizeReduction.cpp
+++ b/lib/Target/ARM/Thumb2SizeReduction.cpp
@@ -94,7 +94,7 @@ namespace {
     { ARM::t2LDRBs, ARM::tLDRB,   0,             0,   0,    1,   0,  0,0, 1 },
     { ARM::t2LDRHi12,ARM::tLDRH,  0,             5,   0,    1,   0,  0,0, 1 },
     { ARM::t2LDRHs, ARM::tLDRH,   0,             0,   0,    1,   0,  0,0, 1 },
-    { ARM::t2LDRSBs,ARM::tLDR,    0,             0,   0,    1,   0,  0,0, 1 },
+    { ARM::t2LDRSBs,ARM::tLDRSB,  0,             0,   0,    1,   0,  0,0, 1 },
     { ARM::t2LDRSHs,ARM::tLDRSH,  0,             0,   0,    1,   0,  0,0, 1 },
     { ARM::t2STRi12,ARM::tSTR,    0,             5,   0,    1,   0,  0,0, 1 },
     { ARM::t2STRs,  ARM::tSTR,    0,             0,   0,    1,   0,  0,0, 1 },
@@ -248,10 +248,12 @@ Thumb2SizeReduce::ReduceLoadStore(MachineBasicBlock &MBB, MachineInstr *MI,
   if (Entry.NarrowOpc1 != ARM::tLDRSB && Entry.NarrowOpc1 != ARM::tLDRSH) {
     // tLDRSB and tLDRSH do not have an immediate offset field. On the other
     // hand, it must have an offset register.
-    assert(OffsetReg && "Invalid so_reg load / store address!");
     // FIXME: Remove this special case.
     MIB.addImm(OffsetImm/Scale);
   }
+
+  assert((!HasShift || OffsetReg) && "Invalid so_reg load / store address!");
+
   MIB.addReg(OffsetReg, getKillRegState(OffsetKill));
 
   // Transfer the rest of operands.

diff --git a/test/CodeGen/Thumb2/2009-08-01-WrongLDRBOpc.ll b/test/CodeGen/Thumb2/2009-08-01-WrongLDRBOpc.ll
index e05e21e8a43012e53e929db0e7de63a75ee61129..5a5965442fe8d931171645623e9b03b45d4a379f 100644 (file)
--- a/test/CodeGen/Thumb2/2009-08-01-WrongLDRBOpc.ll
+++ b/test/CodeGen/Thumb2/2009-08-01-WrongLDRBOpc.ll
@@ -8,7 +8,7 @@
 
 define arm_apcscc void @main(i32 %argc, i8** %argv) noreturn nounwind {
 ; CHECK: main:
-; CHECK: ldrb.w
+; CHECK: ldrb
 entry:
        %nb.i.i.i = alloca [25 x i8], align 1           ; <[25 x i8]*> [#uses=0]
        %line.i.i.i = alloca [200 x i8], align 1                ; <[200 x i8]*> [#uses=1]

diff --git a/test/CodeGen/Thumb2/thumb2-ldr.ll b/test/CodeGen/Thumb2/thumb2-ldr.ll
index 8609ff7d2ea85f04273bbe73e478afe2910e670a..ef9fb9e0eb4a5d709436bcd8e5ee99a7e385c1de 100644 (file)
--- a/test/CodeGen/Thumb2/thumb2-ldr.ll
+++ b/test/CodeGen/Thumb2/thumb2-ldr.ll
@@ -3,7 +3,7 @@
 define i32 @f1(i32* %v) {
 entry:
 ; CHECK: f1:
-; CHECK: ldr.w r0, [r0]
+; CHECK: ldr r0, [r0]
         %tmp = load i32* %v
         ret i32 %tmp
 }
@@ -21,7 +21,7 @@ define i32 @f3(i32* %v) {
 entry:
 ; CHECK: f3:
 ; CHECK: mov.w r1, #4096
-; CHECK: ldr.w r0, [r0, +r1]
+; CHECK: ldr r0, [r0, r1]
         %tmp2 = getelementptr i32* %v, i32 1024
         %tmp = load i32* %tmp2
         ret i32 %tmp
@@ -40,7 +40,7 @@ entry:
 define i32 @f5(i32 %base, i32 %offset) {
 entry:
 ; CHECK: f5:
-; CHECK: ldr.w r0, [r0, +r1]
+; CHECK: ldr r0, [r0, r1]
         %tmp1 = add i32 %base, %offset
         %tmp2 = inttoptr i32 %tmp1 to i32*
         %tmp3 = load i32* %tmp2
@@ -50,7 +50,7 @@ entry:
 define i32 @f6(i32 %base, i32 %offset) {
 entry:
 ; CHECK: f6:
-; CHECK: ldr.w r0, [r0, +r1, lsl #2]
+; CHECK: ldr.w r0, [r0, r1, lsl #2]
         %tmp1 = shl i32 %offset, 2
         %tmp2 = add i32 %base, %tmp1
         %tmp3 = inttoptr i32 %tmp2 to i32*
@@ -62,7 +62,7 @@ define i32 @f7(i32 %base, i32 %offset) {
 entry:
 ; CHECK: f7:
 ; CHECK: lsrs r1, r1, #2
-; CHECK: ldr.w r0, [r0, +r1]
+; CHECK: ldr r0, [r0, r1]
 
         %tmp1 = lshr i32 %offset, 2
         %tmp2 = add i32 %base, %tmp1

diff --git a/test/CodeGen/Thumb2/thumb2-ldrb.ll b/test/CodeGen/Thumb2/thumb2-ldrb.ll
index 7f402c8774b0179d8f64d3dd4ef3c7d6cbb0ed89..4fae85bf27503278aaed42ec4c0c6506746de191 100644 (file)
--- a/test/CodeGen/Thumb2/thumb2-ldrb.ll
+++ b/test/CodeGen/Thumb2/thumb2-ldrb.ll
@@ -3,7 +3,7 @@
 define i8 @f1(i8* %v) {
 entry:
 ; CHECK: f1:
-; CHECK: ldrb.w r0, [r0]
+; CHECK: ldrb r0, [r0]
         %tmp = load i8* %v
         ret i8 %tmp
 }
@@ -21,7 +21,7 @@ define i8 @f3(i32 %base) {
 entry:
 ; CHECK: f3:
 ; CHECK: mov.w r1, #4096
-; CHECK: ldrb.w r0, [r0, +r1]
+; CHECK: ldrb r0, [r0, r1]
         %tmp1 = add i32 %base, 4096
         %tmp2 = inttoptr i32 %tmp1 to i8*
         %tmp3 = load i8* %tmp2
@@ -41,7 +41,7 @@ entry:
 define i8 @f5(i32 %base, i32 %offset) {
 entry:
 ; CHECK: f5:
-; CHECK: ldrb.w r0, [r0, +r1]
+; CHECK: ldrb r0, [r0, r1]
         %tmp1 = add i32 %base, %offset
         %tmp2 = inttoptr i32 %tmp1 to i8*
         %tmp3 = load i8* %tmp2
@@ -51,7 +51,7 @@ entry:
 define i8 @f6(i32 %base, i32 %offset) {
 entry:
 ; CHECK: f6:
-; CHECK: ldrb.w r0, [r0, +r1, lsl #2]
+; CHECK: ldrb.w r0, [r0, r1, lsl #2]
         %tmp1 = shl i32 %offset, 2
         %tmp2 = add i32 %base, %tmp1
         %tmp3 = inttoptr i32 %tmp2 to i8*
@@ -63,7 +63,7 @@ define i8 @f7(i32 %base, i32 %offset) {
 entry:
 ; CHECK: f7:
 ; CHECK: lsrs r1, r1, #2
-; CHECK: ldrb.w r0, [r0, +r1]
+; CHECK: ldrb r0, [r0, r1]
         %tmp1 = lshr i32 %offset, 2
         %tmp2 = add i32 %base, %tmp1
         %tmp3 = inttoptr i32 %tmp2 to i8*

diff --git a/test/CodeGen/Thumb2/thumb2-ldrh.ll b/test/CodeGen/Thumb2/thumb2-ldrh.ll
index 3043940fccbef49d6932f25c98c4b20d6f661e97..19935245e71296f514ea11d54b23f39436607c2d 100644 (file)
--- a/test/CodeGen/Thumb2/thumb2-ldrh.ll
+++ b/test/CodeGen/Thumb2/thumb2-ldrh.ll
@@ -3,7 +3,7 @@
 define i16 @f1(i16* %v) {
 entry:
 ; CHECK: f1:
-; CHECK: ldrh.w r0, [r0]
+; CHECK: ldrh r0, [r0]
         %tmp = load i16* %v
         ret i16 %tmp
 }
@@ -21,7 +21,7 @@ define i16 @f3(i16* %v) {
 entry:
 ; CHECK: f3:
 ; CHECK: mov.w r1, #4096
-; CHECK: ldrh.w r0, [r0, +r1]
+; CHECK: ldrh r0, [r0, r1]
         %tmp2 = getelementptr i16* %v, i16 2048
         %tmp = load i16* %tmp2
         ret i16 %tmp
@@ -40,7 +40,7 @@ entry:
 define i16 @f5(i32 %base, i32 %offset) {
 entry:
 ; CHECK: f5:
-; CHECK: ldrh.w r0, [r0, +r1]
+; CHECK: ldrh r0, [r0, r1]
         %tmp1 = add i32 %base, %offset
         %tmp2 = inttoptr i32 %tmp1 to i16*
         %tmp3 = load i16* %tmp2
@@ -50,7 +50,7 @@ entry:
 define i16 @f6(i32 %base, i32 %offset) {
 entry:
 ; CHECK: f6:
-; CHECK: ldrh.w r0, [r0, +r1, lsl #2]
+; CHECK: ldrh.w r0, [r0, r1, lsl #2]
         %tmp1 = shl i32 %offset, 2
         %tmp2 = add i32 %base, %tmp1
         %tmp3 = inttoptr i32 %tmp2 to i16*
@@ -62,7 +62,7 @@ define i16 @f7(i32 %base, i32 %offset) {
 entry:
 ; CHECK: f7:
 ; CHECK: lsrs r1, r1, #2
-; CHECK: ldrh.w r0, [r0, +r1]
+; CHECK: ldrh r0, [r0, r1]
         %tmp1 = lshr i32 %offset, 2
         %tmp2 = add i32 %base, %tmp1
         %tmp3 = inttoptr i32 %tmp2 to i16*

diff --git a/test/CodeGen/Thumb2/thumb2-str.ll b/test/CodeGen/Thumb2/thumb2-str.ll
index b46935e1f880d100c9896b083dbe78f6071deab1..10c6f87372e2b00bb1c52c6cc4b40397ea8f1382 100644 (file)
--- a/test/CodeGen/Thumb2/thumb2-str.ll
+++ b/test/CodeGen/Thumb2/thumb2-str.ll
@@ -1,28 +1,32 @@
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {str\\.w\\W*r\[0-9\],\\W*\\\[r\[0-9\]*\\\]$} | count 1
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {str\\.w\\W*r\[0-9\],\\W*\\\[r\[0-9\]*,\\W*#+4092\\\]$} | count 1
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {str\\W*r\[0-9\],\\W*\\\[r\[0-9\]*,\\W*#-128\\\]$} | count 2
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | not grep {str\\.w\\W*r\[0-9\],\\W*\\\[r\[0-9\]*,\\W*#+4096\\\]$}
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {str\\.w\\W*r\[0-9\],\\W*\\\[r\[0-9\]*,\\W*+r\[0-9\]*\\\]$} | count 3
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {str\\.w\\W*r\[0-9\],\\W*\\\[r\[0-9\]*,\\W*+r\[0-9\]*,\\Wlsl #2\\\]$} | count 1
+; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | FileCheck %s
 
 define i32 @f1(i32 %a, i32* %v) {
+; CHECK: f1:
+; CHECK: str r0, [r1]
         store i32 %a, i32* %v
         ret i32 %a
 }
 
 define i32 @f2(i32 %a, i32* %v) {
+; CHECK: f2:
+; CHECK: str.w r0, [r1, #+4092]
         %tmp2 = getelementptr i32* %v, i32 1023
         store i32 %a, i32* %tmp2
         ret i32 %a
 }
 
 define i32 @f2a(i32 %a, i32* %v) {
+; CHECK: f2a:
+; CHECK: str r0, [r1, #-128]
         %tmp2 = getelementptr i32* %v, i32 -32
         store i32 %a, i32* %tmp2
         ret i32 %a
 }
 
 define i32 @f3(i32 %a, i32* %v) {
+; CHECK: f3:
+; CHECK: mov.w r2, #4096
+; CHECK: str r0, [r1, r2]
         %tmp2 = getelementptr i32* %v, i32 1024
         store i32 %a, i32* %tmp2
         ret i32 %a
@@ -30,6 +34,8 @@ define i32 @f3(i32 %a, i32* %v) {
 
 define i32 @f4(i32 %a, i32 %base) {
 entry:
+; CHECK: f4:
+; CHECK: str r0, [r1, #-128]
         %tmp1 = sub i32 %base, 128
         %tmp2 = inttoptr i32 %tmp1 to i32*
         store i32 %a, i32* %tmp2
@@ -38,6 +44,8 @@ entry:
 
 define i32 @f5(i32 %a, i32 %base, i32 %offset) {
 entry:
+; CHECK: f5:
+; CHECK: str r0, [r1, r2]
         %tmp1 = add i32 %base, %offset
         %tmp2 = inttoptr i32 %tmp1 to i32*
         store i32 %a, i32* %tmp2
@@ -46,6 +54,8 @@ entry:
 
 define i32 @f6(i32 %a, i32 %base, i32 %offset) {
 entry:
+; CHECK: f6:
+; CHECK: str.w r0, [r1, r2, lsl #2]
         %tmp1 = shl i32 %offset, 2
         %tmp2 = add i32 %base, %tmp1
         %tmp3 = inttoptr i32 %tmp2 to i32*
@@ -55,6 +65,9 @@ entry:
 
 define i32 @f7(i32 %a, i32 %base, i32 %offset) {
 entry:
+; CHECK: f7:
+; CHECK: lsrs r2, r2, #2
+; CHECK: str r0, [r1, r2]
         %tmp1 = lshr i32 %offset, 2
         %tmp2 = add i32 %base, %tmp1
         %tmp3 = inttoptr i32 %tmp2 to i32*

diff --git a/test/CodeGen/Thumb2/thumb2-strb.ll b/test/CodeGen/Thumb2/thumb2-strb.ll
index ed43d494d017be480d07545fdd598cf8d0659ff1..e59f03733299e778c590aa6c52bceb9fb8e9114c 100644 (file)
--- a/test/CodeGen/Thumb2/thumb2-strb.ll
+++ b/test/CodeGen/Thumb2/thumb2-strb.ll
@@ -1,28 +1,32 @@
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {strb\\.w\\W*r\[0-9\],\\W*\\\[r\[0-9\]*\\\]$} | count 1
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {strb\\.w\\W*r\[0-9\],\\W*\\\[r\[0-9\]*,\\W*#+4092\\\]$} | count 1
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {strb\\W*r\[0-9\],\\W*\\\[r\[0-9\]*,\\W*#-128\\\]$} | count 2
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | not grep {strb\\.w\\W*r\[0-9\],\\W*\\\[r\[0-9\]*,\\W*#+4096\\\]$}
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {strb\\.w\\W*r\[0-9\],\\W*\\\[r\[0-9\]*,\\W*+r\[0-9\]*\\\]$} | count 3
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {strb\\.w\\W*r\[0-9\],\\W*\\\[r\[0-9\]*,\\W*+r\[0-9\]*,\\Wlsl #2\\\]$} | count 1
+; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | FileCheck %s
 
 define i8 @f1(i8 %a, i8* %v) {
+; CHECK: f1:
+; CHECK: strb r0, [r1]
         store i8 %a, i8* %v
         ret i8 %a
 }
 
 define i8 @f2(i8 %a, i8* %v) {
+; CHECK: f2:
+; CHECK: strb.w r0, [r1, #+4092]
         %tmp2 = getelementptr i8* %v, i32 4092
         store i8 %a, i8* %tmp2
         ret i8 %a
 }
 
 define i8 @f2a(i8 %a, i8* %v) {
+; CHECK: f2a:
+; CHECK: strb r0, [r1, #-128]
         %tmp2 = getelementptr i8* %v, i32 -128
         store i8 %a, i8* %tmp2
         ret i8 %a
 }
 
 define i8 @f3(i8 %a, i8* %v) {
+; CHECK: f3:
+; CHECK: mov.w r2, #4096
+; CHECK: strb r0, [r1, r2]
         %tmp2 = getelementptr i8* %v, i32 4096
         store i8 %a, i8* %tmp2
         ret i8 %a
@@ -30,6 +34,8 @@ define i8 @f3(i8 %a, i8* %v) {
 
 define i8 @f4(i8 %a, i32 %base) {
 entry:
+; CHECK: f4:
+; CHECK: strb r0, [r1, #-128]
         %tmp1 = sub i32 %base, 128
         %tmp2 = inttoptr i32 %tmp1 to i8*
         store i8 %a, i8* %tmp2
@@ -38,6 +44,8 @@ entry:
 
 define i8 @f5(i8 %a, i32 %base, i32 %offset) {
 entry:
+; CHECK: f5:
+; CHECK: strb r0, [r1, r2]
         %tmp1 = add i32 %base, %offset
         %tmp2 = inttoptr i32 %tmp1 to i8*
         store i8 %a, i8* %tmp2
@@ -46,6 +54,8 @@ entry:
 
 define i8 @f6(i8 %a, i32 %base, i32 %offset) {
 entry:
+; CHECK: f6:
+; CHECK: strb.w r0, [r1, r2, lsl #2]
         %tmp1 = shl i32 %offset, 2
         %tmp2 = add i32 %base, %tmp1
         %tmp3 = inttoptr i32 %tmp2 to i8*
@@ -55,6 +65,9 @@ entry:
 
 define i8 @f7(i8 %a, i32 %base, i32 %offset) {
 entry:
+; CHECK: f7:
+; CHECK: lsrs r2, r2, #2
+; CHECK: strb r0, [r1, r2]
         %tmp1 = lshr i32 %offset, 2
         %tmp2 = add i32 %base, %tmp1
         %tmp3 = inttoptr i32 %tmp2 to i8*

diff --git a/test/CodeGen/Thumb2/thumb2-strh.ll b/test/CodeGen/Thumb2/thumb2-strh.ll
index 28a33a493cf161f007f15f99d183de9712336500..d3925ffe4d34e464934d4506391914e4e0816482 100644 (file)
--- a/test/CodeGen/Thumb2/thumb2-strh.ll
+++ b/test/CodeGen/Thumb2/thumb2-strh.ll
@@ -1,28 +1,32 @@
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {strh\\.w\\W*r\[0-9\],\\W*\\\[r\[0-9\]*\\\]$} | count 1
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {strh\\.w\\W*r\[0-9\],\\W*\\\[r\[0-9\]*,\\W*#+4092\\\]$} | count 1
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {strh\\W*r\[0-9\],\\W*\\\[r\[0-9\]*,\\W*#-128\\\]$} | count 2
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | not grep {strh\\.w\\W*r\[0-9\],\\W*\\\[r\[0-9\]*,\\W*#+4096\\\]$}
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {strh\\.w\\W*r\[0-9\],\\W*\\\[r\[0-9\]*,\\W*+r\[0-9\]*\\\]$} | count 3
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {strh\\.w\\W*r\[0-9\],\\W*\\\[r\[0-9\]*,\\W*+r\[0-9\]*,\\Wlsl #2\\\]$} | count 1
+; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | FileCheck %s
 
 define i16 @f1(i16 %a, i16* %v) {
+; CHECK: f1:
+; CHECK: strh r0, [r1]
         store i16 %a, i16* %v
         ret i16 %a
 }
 
 define i16 @f2(i16 %a, i16* %v) {
+; CHECK: f2:
+; CHECK: strh.w r0, [r1, #+4092]
         %tmp2 = getelementptr i16* %v, i32 2046
         store i16 %a, i16* %tmp2
         ret i16 %a
 }
 
 define i16 @f2a(i16 %a, i16* %v) {
+; CHECK: f2a:
+; CHECK: strh r0, [r1, #-128]
         %tmp2 = getelementptr i16* %v, i32 -64
         store i16 %a, i16* %tmp2
         ret i16 %a
 }
 
 define i16 @f3(i16 %a, i16* %v) {
+; CHECK: f3:
+; CHECK: mov.w r2, #4096
+; CHECK: strh r0, [r1, r2]
         %tmp2 = getelementptr i16* %v, i32 2048
         store i16 %a, i16* %tmp2
         ret i16 %a
@@ -30,6 +34,8 @@ define i16 @f3(i16 %a, i16* %v) {
 
 define i16 @f4(i16 %a, i32 %base) {
 entry:
+; CHECK: f4:
+; CHECK: strh r0, [r1, #-128]
         %tmp1 = sub i32 %base, 128
         %tmp2 = inttoptr i32 %tmp1 to i16*
         store i16 %a, i16* %tmp2
@@ -38,6 +44,8 @@ entry:
 
 define i16 @f5(i16 %a, i32 %base, i32 %offset) {
 entry:
+; CHECK: f5:
+; CHECK: strh r0, [r1, r2]
         %tmp1 = add i32 %base, %offset
         %tmp2 = inttoptr i32 %tmp1 to i16*
         store i16 %a, i16* %tmp2
@@ -46,6 +54,8 @@ entry:
 
 define i16 @f6(i16 %a, i32 %base, i32 %offset) {
 entry:
+; CHECK: f6:
+; CHECK: strh.w r0, [r1, r2, lsl #2]
         %tmp1 = shl i32 %offset, 2
         %tmp2 = add i32 %base, %tmp1
         %tmp3 = inttoptr i32 %tmp2 to i16*
@@ -55,6 +65,9 @@ entry:
 
 define i16 @f7(i16 %a, i32 %base, i32 %offset) {
 entry:
+; CHECK: f7:
+; CHECK: lsrs r2, r2, #2
+; CHECK: strh r0, [r1, r2]
         %tmp1 = lshr i32 %offset, 2
         %tmp2 = add i32 %base, %tmp1
         %tmp3 = inttoptr i32 %tmp2 to i16*