llvm-6502/test/Transforms/InstCombine/printf-1.ll
David Blaikie 5a70dd1d82 [opaque pointer type] Add textual IR support for explicit type parameter to gep operator
Similar to gep (r230786) and load (r230794) changes.

Similar migration script can be used to update test cases, which
successfully migrated all of LLVM and Polly, but about 4 test cases
needed manually changes in Clang.

(this script will read the contents of stdin and massage it into stdout
- wrap it in the 'apply.sh' script shown in previous commits + xargs to
apply it over a large set of test cases)

import fileinput
import sys
import re

rep = re.compile(r"(getelementptr(?:\s+inbounds)?\s*\()((<\d*\s+x\s+)?([^@]*?)(|\s*addrspace\(\d+\))\s*\*(?(3)>)\s*)(?=$|%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|zeroinitializer|<|\[\[[a-zA-Z]|\{\{)", re.MULTILINE | re.DOTALL)

def conv(match):
  line = match.group(1)
  line += match.group(4)
  line += ", "
  line += match.group(2)
  return line

line = sys.stdin.read()
off = 0
for match in re.finditer(rep, line):
  sys.stdout.write(line[off:match.start()])
  sys.stdout.write(conv(match))
  off = match.end()
sys.stdout.write(line[off:])

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232184 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-13 18:20:45 +00:00

120 lines
4.0 KiB
LLVM

; Test that the printf library call simplifier works correctly.
;
; RUN: opt < %s -instcombine -S | FileCheck %s
; RUN: opt < %s -mtriple xcore-xmos-elf -instcombine -S | FileCheck %s -check-prefix=CHECK-IPRINTF
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
@hello_world = constant [13 x i8] c"hello world\0A\00"
@h = constant [2 x i8] c"h\00"
@percent = constant [2 x i8] c"%\00"
@percent_c = constant [3 x i8] c"%c\00"
@percent_d = constant [3 x i8] c"%d\00"
@percent_f = constant [3 x i8] c"%f\00"
@percent_s = constant [4 x i8] c"%s\0A\00"
@empty = constant [1 x i8] c"\00"
; CHECK: [[STR:@[a-z0-9]+]] = private unnamed_addr constant [12 x i8] c"hello world\00"
declare i32 @printf(i8*, ...)
; Check printf("") -> noop.
define void @test_simplify1() {
; CHECK-LABEL: @test_simplify1(
%fmt = getelementptr [1 x i8], [1 x i8]* @empty, i32 0, i32 0
call i32 (i8*, ...)* @printf(i8* %fmt)
ret void
; CHECK-NEXT: ret void
}
; Check printf("x") -> putchar('x'), even for '%'.
define void @test_simplify2() {
; CHECK-LABEL: @test_simplify2(
%fmt = getelementptr [2 x i8], [2 x i8]* @h, i32 0, i32 0
call i32 (i8*, ...)* @printf(i8* %fmt)
; CHECK-NEXT: call i32 @putchar(i32 104)
ret void
; CHECK-NEXT: ret void
}
define void @test_simplify3() {
; CHECK-LABEL: @test_simplify3(
%fmt = getelementptr [2 x i8], [2 x i8]* @percent, i32 0, i32 0
call i32 (i8*, ...)* @printf(i8* %fmt)
; CHECK-NEXT: call i32 @putchar(i32 37)
ret void
; CHECK-NEXT: ret void
}
; Check printf("foo\n") -> puts("foo").
define void @test_simplify4() {
; CHECK-LABEL: @test_simplify4(
%fmt = getelementptr [13 x i8], [13 x i8]* @hello_world, i32 0, i32 0
call i32 (i8*, ...)* @printf(i8* %fmt)
; CHECK-NEXT: call i32 @puts(i8* getelementptr inbounds ([12 x i8], [12 x i8]* [[STR]], i32 0, i32 0))
ret void
; CHECK-NEXT: ret void
}
; Check printf("%c", chr) -> putchar(chr).
define void @test_simplify5() {
; CHECK-LABEL: @test_simplify5(
%fmt = getelementptr [3 x i8], [3 x i8]* @percent_c, i32 0, i32 0
call i32 (i8*, ...)* @printf(i8* %fmt, i8 104)
; CHECK-NEXT: call i32 @putchar(i32 104)
ret void
; CHECK-NEXT: ret void
}
; Check printf("%s\n", str) -> puts(str).
define void @test_simplify6() {
; CHECK-LABEL: @test_simplify6(
%fmt = getelementptr [4 x i8], [4 x i8]* @percent_s, i32 0, i32 0
%str = getelementptr [13 x i8], [13 x i8]* @hello_world, i32 0, i32 0
call i32 (i8*, ...)* @printf(i8* %fmt, i8* %str)
; CHECK-NEXT: call i32 @puts(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @hello_world, i32 0, i32 0))
ret void
; CHECK-NEXT: ret void
}
; Check printf(format, ...) -> iprintf(format, ...) if no floating point.
define void @test_simplify7() {
; CHECK-IPRINTF-LABEL: @test_simplify7(
%fmt = getelementptr [3 x i8], [3 x i8]* @percent_d, i32 0, i32 0
call i32 (i8*, ...)* @printf(i8* %fmt, i32 187)
; CHECK-IPRINTF-NEXT: call i32 (i8*, ...)* @iprintf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @percent_d, i32 0, i32 0), i32 187)
ret void
; CHECK-IPRINTF-NEXT: ret void
}
define void @test_no_simplify1() {
; CHECK-IPRINTF-LABEL: @test_no_simplify1(
%fmt = getelementptr [3 x i8], [3 x i8]* @percent_f, i32 0, i32 0
call i32 (i8*, ...)* @printf(i8* %fmt, double 1.87)
; CHECK-IPRINTF-NEXT: call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @percent_f, i32 0, i32 0), double 1.870000e+00)
ret void
; CHECK-IPRINTF-NEXT: ret void
}
define void @test_no_simplify2(i8* %fmt, double %d) {
; CHECK-LABEL: @test_no_simplify2(
call i32 (i8*, ...)* @printf(i8* %fmt, double %d)
; CHECK-NEXT: call i32 (i8*, ...)* @printf(i8* %fmt, double %d)
ret void
; CHECK-NEXT: ret void
}
define i32 @test_no_simplify3() {
; CHECK-LABEL: @test_no_simplify3(
%fmt = getelementptr [2 x i8], [2 x i8]* @h, i32 0, i32 0
%ret = call i32 (i8*, ...)* @printf(i8* %fmt)
; CHECK-NEXT: call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @h, i32 0, i32 0))
ret i32 %ret
; CHECK-NEXT: ret i32 %ret
}