1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-10-30 15:32:52 +01:00
llvm-mirror/test/CodeGen/PowerPC/mcm-4.ll
Bill Schmidt f26512486a [PowerPC] Fix problems with large code model (PR17169).
Large code model on PPC64 requires creating and referencing TOC entries when
using the addis/ld form of addressing.  This was not being done in all cases.
The changes in this patch to PPCAsmPrinter::EmitInstruction() fix this.  Two
test cases are also modified to reflect this requirement.

Fast-isel was not creating correct code for loading floating-point constants
using large code model.  This also requires the addis/ld form of addressing.
Previously we were using the addis/lfd shortcut which is only applicable to
medium code model.  One test case is modified to reflect this requirement.

llvm-svn: 190882
2013-09-17 20:03:25 +00:00

28 lines
1.1 KiB
LLVM

; RUN: llc -mcpu=pwr7 -O0 -code-model=medium -fast-isel=false <%s | FileCheck -check-prefix=MEDIUM %s
; RUN: llc -mcpu=pwr7 -O0 -code-model=large -fast-isel=false <%s | FileCheck -check-prefix=LARGE %s
; Test correct code generation for medium and large code model
; for loading a value from the constant pool (TOC-relative).
target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
define double @test_double_const() nounwind {
entry:
ret double 0x3F4FD4920B498CF0
}
; MEDIUM: [[VAR:[a-z0-9A-Z_.]+]]:
; MEDIUM: .quad 4562098671269285104
; MEDIUM-LABEL: test_double_const:
; MEDIUM: addis [[REG1:[0-9]+]], 2, [[VAR]]@toc@ha
; MEDIUM: addi [[REG2:[0-9]+]], [[REG1]], [[VAR]]@toc@l
; MEDIUM: lfd {{[0-9]+}}, 0([[REG2]])
; LARGE: [[VAR:[a-z0-9A-Z_.]+]]:
; LARGE: .quad 4562098671269285104
; LARGE-LABEL: test_double_const:
; LARGE: addis [[REG1:[0-9]+]], 2, [[VAR2:[a-z0-9A-Z_.]+]]@toc@ha
; LARGE: ld [[REG2:[0-9]+]], [[VAR2]]@toc@l([[REG1]])
; LARGE: lfd {{[0-9]+}}, 0([[REG2]])