forked from OSchip/llvm-project
162 lines
6.4 KiB
LLVM
162 lines
6.4 KiB
LLVM
|
; Use the -disable-cfi flag so that we get the compact unwind info in the
|
||
|
|
; emitted assembly. Compact unwind info is omitted when CFI directives
|
||
|
|
; are emitted.
|
||
|
|
;
|
||
|
|
; RUN: llc -march=arm64 -mtriple=arm64-apple-ios -disable-cfi < %s | FileCheck %s
|
||
|
|
;
|
||
|
|
; rdar://13070556
|
||
|
|
|
||
|
|
@bar = common global i32 0, align 4
|
||
|
|
|
||
|
|
; Leaf function with no stack allocation and no saving/restoring
|
||
|
|
; of non-volatile registers.
|
||
|
|
define i32 @foo1(i32 %a) #0 {
|
||
|
|
entry:
|
||
|
|
%add = add nsw i32 %a, 42
|
||
|
|
ret i32 %add
|
||
|
|
}
|
||
|
|
|
||
|
|
; Leaf function with stack allocation but no saving/restoring
|
||
|
|
; of non-volatile registers.
|
||
|
|
define i32 @foo2(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i32 %h) #0 {
|
||
|
|
entry:
|
||
|
|
%stack = alloca [36 x i32], align 4
|
||
|
|
br label %for.body
|
||
|
|
|
||
|
|
for.body: ; preds = %for.body, %entry
|
||
|
|
%indvars.iv19 = phi i64 [ 0, %entry ], [ %indvars.iv.next20, %for.body ]
|
||
|
|
%arrayidx = getelementptr inbounds [36 x i32]* %stack, i64 0, i64 %indvars.iv19
|
||
|
|
%0 = trunc i64 %indvars.iv19 to i32
|
||
|
|
store i32 %0, i32* %arrayidx, align 4, !tbaa !0
|
||
|
|
%indvars.iv.next20 = add i64 %indvars.iv19, 1
|
||
|
|
%lftr.wideiv21 = trunc i64 %indvars.iv.next20 to i32
|
||
|
|
%exitcond22 = icmp eq i32 %lftr.wideiv21, 36
|
||
|
|
br i1 %exitcond22, label %for.body4, label %for.body
|
||
|
|
|
||
|
|
for.body4: ; preds = %for.body, %for.body4
|
||
|
|
%indvars.iv = phi i64 [ %indvars.iv.next, %for.body4 ], [ 0, %for.body ]
|
||
|
|
%z1.016 = phi i32 [ %add, %for.body4 ], [ 0, %for.body ]
|
||
|
|
%arrayidx6 = getelementptr inbounds [36 x i32]* %stack, i64 0, i64 %indvars.iv
|
||
|
|
%1 = load i32* %arrayidx6, align 4, !tbaa !0
|
||
|
|
%add = add nsw i32 %1, %z1.016
|
||
|
|
%indvars.iv.next = add i64 %indvars.iv, 1
|
||
|
|
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
|
||
|
|
%exitcond = icmp eq i32 %lftr.wideiv, 36
|
||
|
|
br i1 %exitcond, label %for.end9, label %for.body4
|
||
|
|
|
||
|
|
for.end9: ; preds = %for.body4
|
||
|
|
ret i32 %add
|
||
|
|
}
|
||
|
|
|
||
|
|
; Leaf function with no stack allocation but with saving restoring of
|
||
|
|
; non-volatile registers.
|
||
|
|
define i32 @foo3(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i32 %h) #1 {
|
||
|
|
entry:
|
||
|
|
%0 = load volatile i32* @bar, align 4, !tbaa !0
|
||
|
|
%1 = load volatile i32* @bar, align 4, !tbaa !0
|
||
|
|
%2 = load volatile i32* @bar, align 4, !tbaa !0
|
||
|
|
%3 = load volatile i32* @bar, align 4, !tbaa !0
|
||
|
|
%4 = load volatile i32* @bar, align 4, !tbaa !0
|
||
|
|
%5 = load volatile i32* @bar, align 4, !tbaa !0
|
||
|
|
%6 = load volatile i32* @bar, align 4, !tbaa !0
|
||
|
|
%7 = load volatile i32* @bar, align 4, !tbaa !0
|
||
|
|
%8 = load volatile i32* @bar, align 4, !tbaa !0
|
||
|
|
%9 = load volatile i32* @bar, align 4, !tbaa !0
|
||
|
|
%10 = load volatile i32* @bar, align 4, !tbaa !0
|
||
|
|
%11 = load volatile i32* @bar, align 4, !tbaa !0
|
||
|
|
%12 = load volatile i32* @bar, align 4, !tbaa !0
|
||
|
|
%13 = load volatile i32* @bar, align 4, !tbaa !0
|
||
|
|
%14 = load volatile i32* @bar, align 4, !tbaa !0
|
||
|
|
%15 = load volatile i32* @bar, align 4, !tbaa !0
|
||
|
|
%16 = load volatile i32* @bar, align 4, !tbaa !0
|
||
|
|
%17 = load volatile i32* @bar, align 4, !tbaa !0
|
||
|
|
%factor = mul i32 %h, -2
|
||
|
|
%factor56 = mul i32 %g, -2
|
||
|
|
%factor57 = mul i32 %f, -2
|
||
|
|
%factor58 = mul i32 %e, -2
|
||
|
|
%factor59 = mul i32 %d, -2
|
||
|
|
%factor60 = mul i32 %c, -2
|
||
|
|
%factor61 = mul i32 %b, -2
|
||
|
|
%sum = add i32 %1, %0
|
||
|
|
%sum62 = add i32 %sum, %2
|
||
|
|
%sum63 = add i32 %sum62, %3
|
||
|
|
%sum64 = add i32 %sum63, %4
|
||
|
|
%sum65 = add i32 %sum64, %5
|
||
|
|
%sum66 = add i32 %sum65, %6
|
||
|
|
%sum67 = add i32 %sum66, %7
|
||
|
|
%sum68 = add i32 %sum67, %8
|
||
|
|
%sum69 = add i32 %sum68, %9
|
||
|
|
%sum70 = add i32 %sum69, %10
|
||
|
|
%sum71 = add i32 %sum70, %11
|
||
|
|
%sum72 = add i32 %sum71, %12
|
||
|
|
%sum73 = add i32 %sum72, %13
|
||
|
|
%sum74 = add i32 %sum73, %14
|
||
|
|
%sum75 = add i32 %sum74, %15
|
||
|
|
%sum76 = add i32 %sum75, %16
|
||
|
|
%sub10 = sub i32 %17, %sum76
|
||
|
|
%sub11 = add i32 %sub10, %factor
|
||
|
|
%sub12 = add i32 %sub11, %factor56
|
||
|
|
%sub13 = add i32 %sub12, %factor57
|
||
|
|
%sub14 = add i32 %sub13, %factor58
|
||
|
|
%sub15 = add i32 %sub14, %factor59
|
||
|
|
%sub16 = add i32 %sub15, %factor60
|
||
|
|
%add = add i32 %sub16, %factor61
|
||
|
|
ret i32 %add
|
||
|
|
}
|
||
|
|
|
||
|
|
; Leaf function with stack allocation and saving/restoring of non-volatile
|
||
|
|
; registers.
|
||
|
|
define i32 @foo4(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i32 %h) #0 {
|
||
|
|
entry:
|
||
|
|
%stack = alloca [128 x i32], align 4
|
||
|
|
%0 = zext i32 %a to i64
|
||
|
|
br label %for.body
|
||
|
|
|
||
|
|
for.cond2.preheader: ; preds = %for.body
|
||
|
|
%1 = sext i32 %f to i64
|
||
|
|
br label %for.body4
|
||
|
|
|
||
|
|
for.body: ; preds = %for.body, %entry
|
||
|
|
%indvars.iv22 = phi i64 [ 0, %entry ], [ %indvars.iv.next23, %for.body ]
|
||
|
|
%2 = add nsw i64 %indvars.iv22, %0
|
||
|
|
%arrayidx = getelementptr inbounds [128 x i32]* %stack, i64 0, i64 %indvars.iv22
|
||
|
|
%3 = trunc i64 %2 to i32
|
||
|
|
store i32 %3, i32* %arrayidx, align 4, !tbaa !0
|
||
|
|
%indvars.iv.next23 = add i64 %indvars.iv22, 1
|
||
|
|
%lftr.wideiv25 = trunc i64 %indvars.iv.next23 to i32
|
||
|
|
%exitcond26 = icmp eq i32 %lftr.wideiv25, 128
|
||
|
|
br i1 %exitcond26, label %for.cond2.preheader, label %for.body
|
||
|
|
|
||
|
|
for.body4: ; preds = %for.body4, %for.cond2.preheader
|
||
|
|
%indvars.iv = phi i64 [ 0, %for.cond2.preheader ], [ %indvars.iv.next, %for.body4 ]
|
||
|
|
%z1.018 = phi i32 [ 0, %for.cond2.preheader ], [ %add8, %for.body4 ]
|
||
|
|
%4 = add nsw i64 %indvars.iv, %1
|
||
|
|
%arrayidx7 = getelementptr inbounds [128 x i32]* %stack, i64 0, i64 %4
|
||
|
|
%5 = load i32* %arrayidx7, align 4, !tbaa !0
|
||
|
|
%add8 = add nsw i32 %5, %z1.018
|
||
|
|
%indvars.iv.next = add i64 %indvars.iv, 1
|
||
|
|
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
|
||
|
|
%exitcond = icmp eq i32 %lftr.wideiv, 128
|
||
|
|
br i1 %exitcond, label %for.end11, label %for.body4
|
||
|
|
|
||
|
|
for.end11: ; preds = %for.body4
|
||
|
|
ret i32 %add8
|
||
|
|
}
|
||
|
|
|
||
|
|
attributes #0 = { readnone "target-cpu"="cyclone" }
|
||
|
|
attributes #1 = { "target-cpu"="cyclone" }
|
||
|
|
|
||
|
|
!0 = metadata !{metadata !"int", metadata !1}
|
||
|
|
!1 = metadata !{metadata !"omnipotent char", metadata !2}
|
||
|
|
!2 = metadata !{metadata !"Simple C/C++ TBAA"}
|
||
|
|
|
||
|
|
; CHECK: .section __LD,__compact_unwind,regular,debug
|
||
|
|
; CHECK: .quad _foo1 ; Range Start
|
||
|
|
; CHECK: .long 33554432 ; Compact Unwind Encoding: 0x2000000
|
||
|
|
; CHECK: .quad _foo2 ; Range Start
|
||
|
|
; CHECK: .long 33591296 ; Compact Unwind Encoding: 0x2009000
|
||
|
|
; CHECK: .quad _foo3 ; Range Start
|
||
|
|
; CHECK: .long 33570831 ; Compact Unwind Encoding: 0x200400f
|
||
|
|
; CHECK: .quad _foo4 ; Range Start
|
||
|
|
; CHECK: .long 33689616 ; Compact Unwind Encoding: 0x2021010
|