forked from OSchip/llvm-project
99 lines
3.1 KiB
LLVM
99 lines
3.1 KiB
LLVM
; RUN: llc < %s -mtriple=thumbv7-apple-darwin -relocation-model=pic | FileCheck %s --check-prefix=CHECK --check-prefix=T2
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; RUN: llc < %s -mtriple=thumbv6m-apple-darwin -relocation-model=pic | FileCheck %s --check-prefix=CHECK --check-prefix=T1
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; RUN: llc < %s -mtriple=thumbv6m-apple-darwin -relocation-model=static | FileCheck %s --check-prefix=CHECK --check-prefix=T1
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; Thumb2 target should reorder the bb's in order to use tbb / tbh.
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%struct.R_flstr = type { i32, i32, i8* }
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%struct._T_tstr = type { i32, %struct.R_flstr*, %struct._T_tstr* }
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@_C_nextcmd = external global i32 ; <i32*> [#uses=3]
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@.str31 = external constant [28 x i8], align 1 ; <[28 x i8]*> [#uses=1]
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@_T_gtol = external global %struct._T_tstr* ; <%struct._T_tstr**> [#uses=2]
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declare i32 @strlen(i8* nocapture) nounwind readonly
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declare void @Z_fatal(i8*) noreturn nounwind
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declare noalias i8* @calloc(i32, i32) nounwind
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; Jump tables are not anchored next to the TBB/TBH any more. Make sure the
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; correct address is still calculated (i.e. via a PC-relative symbol *at* the
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; TBB/TBH).
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define i32 @main(i32 %argc, i8** nocapture %argv) nounwind {
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; CHECK-LABEL: main:
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; CHECK-NOT: adr {{r[0-9]+}}, LJTI
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; T1: lsls r[[x:[0-9]+]], {{r[0-9]+}}, #1
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; CHECK: [[PCREL_ANCHOR:LCPI[0-9]+_[0-9]+]]:
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; T2-NEXT: tbb [pc, {{r[0-9]+}}]
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; T1-NEXT: add pc, r[[x]]
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; CHECK: LJTI0_0:
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; CHECK-NEXT: .data_region jt8
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; CHECK-NEXT: .byte (LBB{{[0-9]+_[0-9]+}}-([[PCREL_ANCHOR]]+4))/2
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entry:
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br label %bb42.i
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bb1.i2: ; preds = %bb42.i
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br label %bb40.i
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bb5.i: ; preds = %bb42.i
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%0 = or i32 %argc, 32 ; <i32> [#uses=1]
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br label %bb40.i
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bb7.i: ; preds = %bb42.i
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call void @_T_addtol(%struct._T_tstr** @_T_gtol, i32 0, i8* null) nounwind
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unreachable
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bb15.i: ; preds = %bb42.i
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call void @_T_addtol(%struct._T_tstr** @_T_gtol, i32 2, i8* null) nounwind
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unreachable
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bb23.i: ; preds = %bb42.i
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%1 = call i32 @strlen(i8* null) nounwind readonly ; <i32> [#uses=0]
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unreachable
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bb33.i: ; preds = %bb42.i
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store i32 0, i32* @_C_nextcmd, align 4
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%2 = call noalias i8* @calloc(i32 21, i32 1) nounwind ; <i8*> [#uses=0]
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unreachable
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bb34.i: ; preds = %bb42.i
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%3 = load i32, i32* @_C_nextcmd, align 4 ; <i32> [#uses=1]
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%4 = add i32 %3, 1 ; <i32> [#uses=1]
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store i32 %4, i32* @_C_nextcmd, align 4
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%5 = call noalias i8* @calloc(i32 22, i32 1) nounwind ; <i8*> [#uses=0]
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unreachable
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bb35.i: ; preds = %bb42.i
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%6 = call noalias i8* @calloc(i32 20, i32 1) nounwind ; <i8*> [#uses=0]
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unreachable
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bb37.i: ; preds = %bb42.i
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%7 = call noalias i8* @calloc(i32 14, i32 1) nounwind ; <i8*> [#uses=0]
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unreachable
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bb39.i: ; preds = %bb42.i
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call void @Z_fatal(i8* getelementptr ([28 x i8], [28 x i8]* @.str31, i32 0, i32 0)) nounwind
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unreachable
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bb40.i: ; preds = %bb42.i, %bb5.i, %bb1.i2
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br label %bb42.i
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bb42.i: ; preds = %bb40.i, %entry
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switch i32 %argc, label %bb39.i [
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i32 67, label %bb33.i
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i32 70, label %bb35.i
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i32 77, label %bb37.i
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i32 83, label %bb34.i
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i32 97, label %bb7.i
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i32 100, label %bb5.i
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i32 101, label %bb40.i
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i32 102, label %bb23.i
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i32 105, label %bb15.i
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i32 116, label %bb1.i2
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]
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}
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declare void @_T_addtol(%struct._T_tstr** nocapture, i32, i8*) nounwind
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