| ; RUN: llc -mtriple=thumb-eabi %s -o - | FileCheck %s -check-prefix=V5 |
| ; RUN: llc -mtriple=thumb-eabi -mattr=+v6 %s -o - | FileCheck %s -check-prefix=V6 |
| |
| ; rdar://7176514 |
| |
| define i32 @test1(ptr %t1) nounwind { |
| ; V5: ldrb |
| |
| ; V6: ldrb |
| %tmp.u = load i8, ptr %t1 |
| %tmp1.s = zext i8 %tmp.u to i32 |
| ret i32 %tmp1.s |
| } |
| |
| define i32 @test2(ptr %t1) nounwind { |
| ; V5: ldrh |
| |
| ; V6: ldrh |
| %tmp.u = load i16, ptr %t1 |
| %tmp1.s = zext i16 %tmp.u to i32 |
| ret i32 %tmp1.s |
| } |
| |
| define i32 @test3(ptr %t0) nounwind { |
| ; V5: ldrb |
| ; V5: lsls |
| ; V5: asrs |
| |
| ; V6: mov |
| ; V6: ldrsb |
| %tmp.s = load i8, ptr %t0 |
| %tmp1.s = sext i8 %tmp.s to i32 |
| ret i32 %tmp1.s |
| } |
| |
| define i32 @test4(ptr %t0) nounwind { |
| ; V5: ldrh |
| ; V5: lsls |
| ; V5: asrs |
| |
| ; V6: mov |
| ; V6: ldrsh |
| %tmp.s = load i16, ptr %t0 |
| %tmp1.s = sext i16 %tmp.s to i32 |
| ret i32 %tmp1.s |
| } |
| |
| define i32 @test5() nounwind { |
| ; V5: movs r0, #0 |
| ; V5: ldrsh |
| |
| ; V6: movs r0, #0 |
| ; V6: ldrsh |
| %tmp.s = load i16, ptr null |
| %tmp1.s = sext i16 %tmp.s to i32 |
| ret i32 %tmp1.s |
| } |
