ARM isel should match ldr x +/- x * (2^n) to ldr [x, +/- x, lsl #log2(n)].

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35114 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 17 insertions, 1 deletions

diff --git a/test/CodeGen/ARM/2007-03-13-InstrSched.ll b/test/CodeGen/ARM/2007-03-13-InstrSched.ll
index 023822e..c8ad147 100644
--- a/test/CodeGen/ARM/2007-03-13-InstrSched.ll
+++ b/test/CodeGen/ARM/2007-03-13-InstrSched.ll
@@ -1,4 +1,4 @@
-; RUN: llvm-as < %s | llc -mtriple=arm-apple-darwin -relocation-model=pic -mattr=+v6 -stats 2>&1 | grep 'asm-printer' | grep 57
+; RUN: llvm-as < %s | llc -mtriple=arm-apple-darwin -relocation-model=pic -mattr=+v6 -stats 2>&1 | grep 'asm-printer' | grep 53
 
 define void @test(i32 %tmp56222, i32 %tmp36224, i32 %tmp46223, i32 %i.0196.0.ph, i32 %tmp8, i32* %tmp1011, i32** %tmp1, i32* %d2.1.out, i32* %d3.1.out, i32* %d0.1.out, i32* %d1.1.out) {
 newFuncRoot:
diff --git a/test/CodeGen/ARM/addrmode.ll b/test/CodeGen/ARM/addrmode.ll
new file mode 100644
index 0000000..59b1421
--- /dev/null
+++ b/test/CodeGen/ARM/addrmode.ll
@@ -0,0 +1,16 @@
+; RUN: llvm-as < %s | llc -march=arm &&
+; RUN: llvm-as < %s | llc -march=arm -stats 2>&1 | grep 'asm-printer' | grep 4
+
+define i32 @t1(i32 %a) {
+	%b = mul i32 %a, 9
+        %c = inttoptr i32 %b to i32*
+        %d = load i32* %c
+	ret i32 %d
+}
+
+define i32 @t2(i32 %a) {
+	%b = mul i32 %a, -7
+        %c = inttoptr i32 %b to i32*
+        %d = load i32* %c
+	ret i32 %d
+}