| ; PR35221. Test that external global address is not reloaded from GOT in each BB. | |
| ; RUN: llc < %s -mtriple=armv7-linux-gnueabi -relocation-model=pic | FileCheck %s -check-prefix=LINUX-PIC | |
| @x = external global i8, align 1 | |
| define signext i8 @foo() { | |
| entry: | |
| ; LINUX-PIC: ldr r[[A:.]], .LCPI0_0 | |
| ; LINUX-PIC: ldr r[[B:.]], [pc, r[[A]]] | |
| ; LINUX-PIC: ldrb r{{.}}, [r[[B]]] | |
| %0 = load i8, i8* @x | |
| %tobool = icmp eq i8 %0, 0 | |
| br i1 %tobool, label %bb1, label %bb2 | |
| bb1: | |
| call void @bar() | |
| ; No more pc-relative loads! Reuse r[[B]]. | |
| ; LINUX-PIC: bl bar | |
| ; LINUX-PIC-NOT: ldr{{.*}}[pc, | |
| ; LINUX-PIC: ldrsb r{{.}}, [r[[B]]] | |
| %1 = load i8, i8* @x | |
| ret i8 %1 | |
| bb2: | |
| ret i8 0 | |
| } | |
| declare void @bar() | |