Fix codegen of conditional move of immediates. We were not making use of the immediate forms of cmov instructions at all.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89423 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 48 insertions, 0 deletions

diff --git a/test/CodeGen/ARM/select-imm.ll b/test/CodeGen/ARM/select-imm.ll
new file mode 100644
index 0000000000..07edc91519
--- /dev/null
+++ b/test/CodeGen/ARM/select-imm.ll
@@ -0,0 +1,48 @@
+; RUN: llc < %s -march=arm                | FileCheck %s --check-prefix=ARM
+; RUN: llc < %s -march=arm -mattr=+thumb2 | FileCheck %s --check-prefix=T2
+
+define arm_apcscc i32 @t1(i32 %c) nounwind readnone {
+entry:
+; ARM: t1:
+; ARM: mov r1, #101
+; ARM: orr r1, r1, #1, 24
+; ARM: movgt r0, #123
+
+; T2: t1:
+; T2: movw r0, #357
+; T2: movgt r0, #123
+
+  %0 = icmp sgt i32 %c, 1
+  %1 = select i1 %0, i32 123, i32 357
+  ret i32 %1
+}
+
+define arm_apcscc i32 @t2(i32 %c) nounwind readnone {
+entry:
+; ARM: t2:
+; ARM: mov r1, #101
+; ARM: orr r1, r1, #1, 24
+; ARM: movle r0, #123
+
+; T2: t2:
+; T2: movw r0, #357
+; T2: movle r0, #123
+
+  %0 = icmp sgt i32 %c, 1
+  %1 = select i1 %0, i32 357, i32 123
+  ret i32 %1
+}
+
+define arm_apcscc i32 @t3(i32 %a) nounwind readnone {
+entry:
+; ARM: t3:
+; ARM: mov r0, #0
+; ARM: moveq r0, #1
+
+; T2: t3:
+; T2: mov r0, #0
+; T2: moveq r0, #1
+  %0 = icmp eq i32 %a, 160
+  %1 = zext i1 %0 to i32
+  ret i32 %1
+}