Subzero: Fix sext/zext lowering with i1 source operands.
Also declare a few variables as Constant* instead of Operand* when they hold the result of Ctx->getConstantInt(), to be consistent with the rest of the code.
BUG= none
R=jvoung@chromium.org
Review URL: https://codereview.chromium.org/541093002
diff --git a/tests_lit/llvm2ice_tests/sext_zext_i1.ll b/tests_lit/llvm2ice_tests/sext_zext_i1.ll
new file mode 100644
index 0000000..e616e98
--- /dev/null
+++ b/tests_lit/llvm2ice_tests/sext_zext_i1.ll
@@ -0,0 +1,96 @@
+; Test sext and zext instructions with i1 source operands.
+
+; RUN: %llvm2ice -O2 --verbose none %s \
+; RUN: | llvm-mc -triple=i686-none-nacl -x86-asm-syntax=intel -filetype=obj \
+; RUN: | llvm-objdump -d --symbolize -x86-asm-syntax=intel - | FileCheck %s
+; RUN: %llvm2ice -Om1 --verbose none %s \
+; RUN: | llvm-mc -triple=i686-none-nacl -x86-asm-syntax=intel -filetype=obj \
+; RUN: | llvm-objdump -d --symbolize -x86-asm-syntax=intel - | FileCheck %s
+; RUN: %llvm2ice --verbose none %s | FileCheck --check-prefix=ERRORS %s
+; RUN: %llvm2iceinsts %s | %szdiff %s | FileCheck --check-prefix=DUMP %s
+; RUN: %llvm2iceinsts --pnacl %s | %szdiff %s \
+; RUN: | FileCheck --check-prefix=DUMP %s
+
+define internal i8 @sext1To8(i32 %a) {
+entry:
+ %a.arg_trunc = trunc i32 %a to i1
+ %conv = sext i1 %a.arg_trunc to i8
+ ret i8 %conv
+}
+; CHECK-LABEL: sext1To8
+; CHECK: mov
+; CHECK: shl {{.*}}, 7
+; CHECK: sar {{.*}}, 7
+
+define internal i16 @sext1To16(i32 %a) {
+entry:
+ %a.arg_trunc = trunc i32 %a to i1
+ %conv = sext i1 %a.arg_trunc to i16
+ ret i16 %conv
+}
+; CHECK-LABEL: sext1To16
+; CHECK: mov
+; CHECK: shl {{.*}}, 15
+; CHECK: sar {{.*}}, 15
+
+define internal i32 @sext1To32(i32 %a) {
+entry:
+ %a.arg_trunc = trunc i32 %a to i1
+ %conv = sext i1 %a.arg_trunc to i32
+ ret i32 %conv
+}
+; CHECK-LABEL: sext1To32
+; CHECK: mov
+; CHECK: shl {{.*}}, 31
+; CHECK: sar {{.*}}, 31
+
+define internal i64 @sext1To64(i32 %a) {
+entry:
+ %a.arg_trunc = trunc i32 %a to i1
+ %conv = sext i1 %a.arg_trunc to i64
+ ret i64 %conv
+}
+; CHECK-LABEL: sext1To64
+; CHECK: mov
+; CHECK: shl {{.*}}, 31
+; CHECK: sar {{.*}}, 31
+; CHECK: sar {{.*}}, 31
+
+define internal i8 @zext1To8(i32 %a) {
+entry:
+ %a.arg_trunc = trunc i32 %a to i1
+ %conv = zext i1 %a.arg_trunc to i8
+ ret i8 %conv
+}
+; CHECK-LABEL: zext1To8
+; CHECK: and {{.*}}, 1
+
+define internal i16 @zext1To16(i32 %a) {
+entry:
+ %a.arg_trunc = trunc i32 %a to i1
+ %conv = zext i1 %a.arg_trunc to i16
+ ret i16 %conv
+}
+; CHECK-LABEL: zext1To16
+; CHECK: and {{.*}}, 1
+
+define internal i32 @zext1To32(i32 %a) {
+entry:
+ %a.arg_trunc = trunc i32 %a to i1
+ %conv = zext i1 %a.arg_trunc to i32
+ ret i32 %conv
+}
+; CHECK-LABEL: zext1To32
+; CHECK: and {{.*}}, 1
+
+define internal i64 @zext1To64(i32 %a) {
+entry:
+ %a.arg_trunc = trunc i32 %a to i1
+ %conv = zext i1 %a.arg_trunc to i64
+ ret i64 %conv
+}
+; CHECK-LABEL: zext1To64
+; CHECK: and {{.*}}, 1
+
+; ERRORS-NOT: ICE translation error
+; DUMP-NOT: SZ
