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Revert "Revert "As a follow-up to my initial mail to llvm-dev here's a first pass at the O1 described there."" This reapplies: 8ff85ed905a7306977d07a5cd67ab4d5a56fafb4 Original commit message: As a follow-up to my initial mail to llvm-dev here's a first pass at the O1 described there. This change doesn't include any change to move from selection dag to fast isel and that will come with other numbers that should help inform that decision. There also haven't been any real debuggability studies with this pipeline yet, this is just the initial start done so that people could see it and we could start tweaking after. Test updates: Outside of the newpm tests most of the updates are coming from either optimization passes not run anymore (and without a compelling argument at the moment) that were largely used for canonicalization in clang. Original post: http://lists.llvm.org/pipermail/llvm-dev/2019-April/131494.html Tags: #llvm Differential Revision: https://reviews.llvm.org/D65410 This reverts commit c9ddb02659e3ece7a0d9d6b4dac7ceea4ae46e6d.
2019-11-27 12:28:52 +08:00
// RUN: %clang_cc1 -triple i386-unknown-unknown -O2 -emit-llvm -o - %s | FileCheck %s
[test] Add {{.*}} to make ELF tests immune to dso_local/dso_preemptable/(none) differences For a default visibility external linkage definition, dso_local is set for ELF -fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences. To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition, which sets dso_local for default visibility external linkage definitions. To make this flip smooth and enable future (dso_local as definition default), this patch replaces (function) `define ` with `define{{.*}} `, (variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
2020-12-31 16:27:11 +08:00
// CHECK-LABEL: define{{.*}} i32 @f0()
clang/test/CodeGen: Nuke llvm's opt and llvm-dis, and FileCheck-ize two tests. -O1 is sufficient here. llvm-svn: 173115
2013-01-22 09:51:59 +08:00
// CHECK: ret i32 0
[test] Add {{.*}} to make ELF tests immune to dso_local/dso_preemptable/(none) differences For a default visibility external linkage definition, dso_local is set for ELF -fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences. To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition, which sets dso_local for default visibility external linkage definitions. To make this flip smooth and enable future (dso_local as definition default), this patch replaces (function) `define ` with `define{{.*}} `, (variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
2020-12-31 16:27:11 +08:00
// CHECK-LABEL: define{{.*}} i32 @f1()
clang/test/CodeGen: Nuke llvm's opt and llvm-dis, and FileCheck-ize two tests. -O1 is sufficient here. llvm-svn: 173115
2013-01-22 09:51:59 +08:00
// CHECK: ret i32 0
[test] Add {{.*}} to make ELF tests immune to dso_local/dso_preemptable/(none) differences For a default visibility external linkage definition, dso_local is set for ELF -fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences. To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition, which sets dso_local for default visibility external linkage definitions. To make this flip smooth and enable future (dso_local as definition default), this patch replaces (function) `define ` with `define{{.*}} `, (variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
2020-12-31 16:27:11 +08:00
// CHECK-LABEL: define{{.*}} i32 @f2()
clang/test/CodeGen: Nuke llvm's opt and llvm-dis, and FileCheck-ize two tests. -O1 is sufficient here. llvm-svn: 173115
2013-01-22 09:51:59 +08:00
// CHECK: ret i32 0
Fix implicit initialization of structures. <rdar://problem/6113085> llvm-svn: 54237
2008-07-31 05:00:24 +08:00
// <rdar://problem/6113085>
struct s0 {
int x, y;
};
A significant number of our tests in C accidentally use functions without prototypes. This patch converts the function signatures to have a prototype for the situations where the test is not specific to K&R C declarations. e.g., void func(); becomes void func(void); This is the ninth batch of tests being updated (there are a significant number of other tests left to be updated).
2022-02-13 21:02:46 +08:00
int f0(void) {
Fix implicit initialization of structures. <rdar://problem/6113085> llvm-svn: 54237
2008-07-31 05:00:24 +08:00
struct s0 x = {0};
return x.y;
}
A significant number of our tests in C accidentally use functions without prototypes. This patch converts the function signatures to have a prototype for the situations where the test is not specific to K&R C declarations. e.g., void func(); becomes void func(void); This is the ninth batch of tests being updated (there are a significant number of other tests left to be updated).
2022-02-13 21:02:46 +08:00
int f1(void) {
Fix implicit initialization of structures. <rdar://problem/6113085> llvm-svn: 54237
2008-07-31 05:00:24 +08:00
struct s0 x[2] = { {0} };
return x[1].x;
}
A significant number of our tests in C accidentally use functions without prototypes. This patch converts the function signatures to have a prototype for the situations where the test is not specific to K&R C declarations. e.g., void func(); becomes void func(void); This is the ninth batch of tests being updated (there are a significant number of other tests left to be updated).
2022-02-13 21:02:46 +08:00
int f2(void) {
Fix implicit initialization of structures. <rdar://problem/6113085> llvm-svn: 54237
2008-07-31 05:00:24 +08:00
int x[2] = { 0 };
return x[1];
}