forked from OSchip/llvm-project
159 lines
3.1 KiB
LLVM
159 lines
3.1 KiB
LLVM
; RUN: llc < %s -mtriple=thumbv7m -mcpu=cortex-m7 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-BP
|
|
; RUN: llc < %s -mtriple=thumbv7m -mcpu=cortex-m3 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-NOBP
|
|
|
|
declare void @otherfn()
|
|
|
|
; CHECK-LABEL: triangle1:
|
|
; CHECK: itt ne
|
|
; CHECK: movne
|
|
; CHECK: strne
|
|
define i32 @triangle1(i32 %n, i32* %p) {
|
|
entry:
|
|
%tobool = icmp eq i32 %n, 0
|
|
br i1 %tobool, label %if.end, label %if.then
|
|
|
|
if.then:
|
|
store i32 1, i32* %p, align 4
|
|
br label %if.end
|
|
|
|
if.end:
|
|
tail call void @otherfn()
|
|
ret i32 0
|
|
}
|
|
|
|
; CHECK-LABEL: triangle2:
|
|
; CHECK-BP: itttt ne
|
|
; CHECK-BP: movne
|
|
; CHECK-BP: strne
|
|
; CHECK-BP: movne
|
|
; CHECK-BP: strne
|
|
; CHECK-NOBP: cbz
|
|
; CHECK-NOBP: movs
|
|
; CHECK-NOBP: str
|
|
; CHECK-NOBP: movs
|
|
; CHECK-NOBP: str
|
|
define i32 @triangle2(i32 %n, i32* %p, i32* %q) {
|
|
entry:
|
|
%tobool = icmp eq i32 %n, 0
|
|
br i1 %tobool, label %if.end, label %if.then
|
|
|
|
if.then:
|
|
store i32 1, i32* %p, align 4
|
|
store i32 2, i32* %q, align 4
|
|
br label %if.end
|
|
|
|
if.end:
|
|
tail call void @otherfn()
|
|
ret i32 0
|
|
}
|
|
|
|
; CHECK-LABEL: triangle3:
|
|
; CHECK: cbz
|
|
; CHECK: movs
|
|
; CHECK: str
|
|
; CHECK: movs
|
|
; CHECK: str
|
|
; CHECK: movs
|
|
; CHECK: str
|
|
define i32 @triangle3(i32 %n, i32* %p, i32* %q, i32* %r) {
|
|
entry:
|
|
%tobool = icmp eq i32 %n, 0
|
|
br i1 %tobool, label %if.end, label %if.then
|
|
|
|
if.then:
|
|
store i32 1, i32* %p, align 4
|
|
store i32 2, i32* %q, align 4
|
|
store i32 3, i32* %r, align 4
|
|
br label %if.end
|
|
|
|
if.end:
|
|
tail call void @otherfn()
|
|
ret i32 0
|
|
}
|
|
|
|
; CHECK-LABEL: diamond1:
|
|
; CHECK: ite eq
|
|
; CHECK: ldreq
|
|
; CHECK: strne
|
|
define i32 @diamond1(i32 %n, i32* %p) {
|
|
entry:
|
|
%tobool = icmp eq i32 %n, 0
|
|
br i1 %tobool, label %if.else, label %if.then
|
|
|
|
if.then:
|
|
store i32 %n, i32* %p, align 4
|
|
br label %if.end
|
|
|
|
if.else:
|
|
%0 = load i32, i32* %p, align 4
|
|
br label %if.end
|
|
|
|
if.end:
|
|
%n.addr.0 = phi i32 [ %n, %if.then ], [ %0, %if.else ]
|
|
tail call void @otherfn()
|
|
ret i32 %n.addr.0
|
|
}
|
|
|
|
; CHECK-LABEL: diamond2:
|
|
; CHECK-BP: cbz
|
|
; CHECK-BP: str
|
|
; CHECK-BP: str
|
|
; CHECK-BP: b
|
|
; CHECK-BP: str
|
|
; CHECK-BP: ldr
|
|
; CHECK-NOBP: ittee
|
|
; CHECK-NOBP: streq
|
|
; CHECK-NOBP: ldreq
|
|
; CHECK-NOBP: strne
|
|
; CHECK-NOBP: strne
|
|
define i32 @diamond2(i32 %n, i32 %m, i32* %p, i32* %q) {
|
|
entry:
|
|
%tobool = icmp eq i32 %n, 0
|
|
br i1 %tobool, label %if.else, label %if.then
|
|
|
|
if.then:
|
|
store i32 %n, i32* %p, align 4
|
|
%arrayidx = getelementptr inbounds i32, i32* %p, i32 2
|
|
store i32 %n, i32* %arrayidx, align 4
|
|
br label %if.end
|
|
|
|
if.else:
|
|
store i32 %m, i32* %q, align 4
|
|
%0 = load i32, i32* %p, align 4
|
|
br label %if.end
|
|
|
|
if.end:
|
|
%n.addr.0 = phi i32 [ %n, %if.then ], [ %0, %if.else ]
|
|
tail call void @otherfn()
|
|
ret i32 %n.addr.0
|
|
}
|
|
|
|
; CHECK-LABEL: diamond3:
|
|
; CHECK: cbz
|
|
; CHECK: movs
|
|
; CHECK: str
|
|
; CHECK: b
|
|
; CHECK: ldr
|
|
; CHECK: ldr
|
|
; CHECK: adds
|
|
define i32 @diamond3(i32 %n, i32* %p, i32* %q) {
|
|
entry:
|
|
%tobool = icmp eq i32 %n, 0
|
|
br i1 %tobool, label %if.else, label %if.then
|
|
|
|
if.then:
|
|
store i32 1, i32* %p, align 4
|
|
br label %if.end
|
|
|
|
if.else:
|
|
%0 = load i32, i32* %p, align 4
|
|
%1 = load i32, i32* %q, align 4
|
|
%add = add nsw i32 %1, %0
|
|
br label %if.end
|
|
|
|
if.end:
|
|
%n.addr.0 = phi i32 [ %n, %if.then ], [ %add, %if.else ]
|
|
tail call void @otherfn()
|
|
ret i32 %n.addr.0
|
|
}
|