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| ; RUN: llc -mtriple thumbv7--windows-itanium -print-after=finalize-isel -verify-machineinstrs -o /dev/null %s 2>&1 | FileCheck %s -check-prefix CHECK-DIV
; int f(int n, int d) {
; if (n / d)
; return 1;
; return 0;
; }
define arm_aapcs_vfpcc i32 @f(i32 %n, i32 %d) {
entry:
%retval = alloca i32, align 4
%n.addr = alloca i32, align 4
%d.addr = alloca i32, align 4
store i32 %n, i32* %n.addr, align 4
store i32 %d, i32* %d.addr, align 4
%0 = load i32, i32* %n.addr, align 4
%1 = load i32, i32* %d.addr, align 4
%div = sdiv i32 %0, %1
%tobool = icmp ne i32 %div, 0
br i1 %tobool, label %if.then, label %if.end
if.then:
store i32 1, i32* %retval, align 4
br label %return
if.end:
store i32 0, i32* %retval, align 4
br label %return
return:
%2 = load i32, i32* %retval, align 4
ret i32 %2
}
; CHECK-DIV-DAG: %bb.0
; CHECK-DIV-DAG: successors: %bb.1({{.*}}), %bb.2
; CHECK-DIV-DAG: %bb.1
; CHECK-DIV-DAG: successors: %bb.3
; CHECK-DIV-DAG: %bb.2
; CHECK-DIV-DAG: successors: %bb.3
; CHECK-DIV-DAG: %bb.3
; RUN: llc -mtriple thumbv7--windows-itanium -print-after=finalize-isel -verify-machineinstrs -o /dev/null %s 2>&1 | FileCheck %s -check-prefix CHECK-MOD
; int r;
; int g(int l, int m) {
; if (m <= 0)
; return 0;
; return (r = l % m);
; }
@r = common global i32 0, align 4
define arm_aapcs_vfpcc i32 @g(i32 %l, i32 %m) {
entry:
%cmp = icmp eq i32 %m, 0
br i1 %cmp, label %return, label %if.end
if.end:
%rem = urem i32 %l, %m
store i32 %rem, i32* @r, align 4
br label %return
return:
%retval.0 = phi i32 [ %rem, %if.end ], [ 0, %entry ]
ret i32 %retval.0
}
; CHECK-MOD-DAG: %bb.0
; CHECK-MOD-DAG: successors: %bb.2({{.*}}), %bb.1
; CHECK-MOD-DAG: %bb.1
; CHECK-MOD-DAG: successors: %bb.3
; CHECK-MOD-DAG: %bb.3
; CHECK-MOD-DAG: successors: %bb.2
; CHECK-MOD-DAG: %bb.2
; RUN: llc -mtriple thumbv7--windows-itanium -print-after=finalize-isel -verify-machineinstrs -filetype asm -o /dev/null %s 2>&1 | FileCheck %s -check-prefix CHECK-CFG
; RUN: llc -mtriple thumbv7--windows-itanium -verify-machineinstrs -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-CFG-ASM
; unsigned c;
; extern unsigned long g(void);
; int f(unsigned u, signed char b) {
; if (b)
; c = g() % u;
; return c;
; }
@c = common global i32 0, align 4
declare arm_aapcs_vfpcc i32 @i()
define arm_aapcs_vfpcc i32 @h(i32 %u, i8 signext %b) #0 {
entry:
%tobool = icmp eq i8 %b, 0
br i1 %tobool, label %entry.if.end_crit_edge, label %if.then
entry.if.end_crit_edge:
%.pre = load i32, i32* @c, align 4
br label %if.end
if.then:
%call = tail call arm_aapcs_vfpcc i32 @i()
%rem = urem i32 %call, %u
store i32 %rem, i32* @c, align 4
br label %if.end
if.end:
%0 = phi i32 [ %.pre, %entry.if.end_crit_edge ], [ %rem, %if.then ]
ret i32 %0
}
attributes #0 = { optsize }
; CHECK-CFG-DAG: %bb.0
; CHECK-CFG-DAG: t2Bcc %bb.2
; CHECK-CFG-DAG: t2B %bb.1
; CHECK-CFG-DAG: %bb.1
; CHECK-CFG-DAG: t2B %bb.3
; CHECK-CFG-DAG: %bb.2
; CHECK-CFG-DAG: tCMPi8 %{{[0-9]}}{{[^,]*}}, 0
; CHECK-CFG-DAG: t2Bcc %bb.5
; CHECK-CFG-DAG: %bb.4
; CHECK-CFG-DAG: %bb.3
; CHECK-CFG-DAG: tBX_RET
; CHECK-CFG-DAG: %bb.5
; CHECK-CFG-DAG: t__brkdiv0
; CHECK-CFG-ASM-LABEL: h:
; CHECK-CFG-ASM: cbz r{{[0-9]}}, .LBB2_4
; CHECK-CFG-ASM: bl __rt_udiv
; CHECK-CFG-ASM-LABEL: .LBB2_4:
; CHECK-CFG-ASM: __brkdiv0
; RUN: llc -O1 -mtriple thumbv7--windows-itanium -verify-machineinstrs -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-WIN__DBZCHK
; long k(void);
; int l(void);
; int j(int i) {
; if (l() == -1)
; return 0;
; return k() % i;
; }
declare arm_aapcs_vfpcc i32 @k()
declare arm_aapcs_vfpcc i32 @l()
define arm_aapcs_vfpcc i32 @j(i32 %i) {
entry:
%retval = alloca i32, align 4
%i.addr = alloca i32, align 4
store i32 %i, i32* %i.addr, align 4
%call = call arm_aapcs_vfpcc i32 @l()
%cmp = icmp eq i32 %call, -1
br i1 %cmp, label %if.then, label %if.end
if.then:
store i32 0, i32* %retval, align 4
br label %return
if.end:
%call1 = call arm_aapcs_vfpcc i32 @k()
%0 = load i32, i32* %i.addr, align 4
%rem = srem i32 %call1, %0
store i32 %rem, i32* %retval, align 4
br label %return
return:
%1 = load i32, i32* %retval, align 4
ret i32 %1
}
; CHECK-WIN__DBZCHK-LABEL: j:
; CHECK-WIN__DBZCHK: cbz r{{[0-7]}}, .LBB
; CHECK-WIN__DBZCHK-NOT: cbz r8, .LBB
; CHECK-WIN__DBZCHK-NOT: cbz r9, .LBB
; CHECK-WIN__DBZCHK-NOT: cbz r10, .LBB
; CHECK-WIN__DBZCHK-NOT: cbz r11, .LBB
; CHECK-WIN__DBZCHK-NOT: cbz ip, .LBB
; CHECK-WIN__DBZCHK-NOT: cbz lr, .LBB
|